LIFE SCIENCES RESEARCH, INC. AND SUBSIDIARIES

                                  UNITED STATES

                       SECURITIES AND EXCHANGE COMMISSION

                             WASHINGTON, D.C. 20549


- --------------------------------------------------------------------------------

                                    FORM 10-Q
                (X) QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d)
                     OF THE SECURITIES EXCHANGE ACT OF 1934

                     For the quarterly period: June 30, 2004

                                       OR
            ( ) TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF
                       THE SECURITIES EXCHANGE ACT OF 1934
                         COMMISSION FILE NUMBER 0-33505


                            ------------------------


                           LIFE SCIENCES RESEARCH INC.

             (EXACT NAME OF REGISTRANT AS SPECIFIED IN ITS CHARTER)
                                    MARYLAND
                 (JURISDICTION OF INCORPORATION OR ORGANIZATION)
                                   52-2340150
                         IRS Employer Identification No.
            PO BOX 2360, METTLERS ROAD, EAST MILLSTONE, NJ 08875-2360
                    (ADDRESS OF PRINCIPAL EXECUTIVE OFFICES)
        REGISTRANT'S TELEPHONE NUMBER, INCLUDING AREA CODE: 732 649-9961

Indicate by check mark whether the Registrant (1) has filed all reports required
to be filed by Section 13 or Section  15(d) of the  Securities  Exchange  Act of
1934  during  the  preceding  12 months  (or for such  shorter  period  that the
registrant  was required to file such report),  and (2) has been subject to such
filing requirements for the past 90 days.

                 Yes X                     No __


Indicate  by check mark  whether  the  registrant  is an  accelerated  filer (as
defined in Rule 12b-2 of the Act)

                 Yes __                    No X

Indicate the number of outstanding shares of each of the Registrant's classes of
common stock as of the latest practicable date.

        12,050,358 Voting Common Stock of $0.01 each as at August 4, 2004

- --------------------------------------------------------------------------------





TABLE OF CONTENTS



 PART I    FINANCIAL INFORMATION                                                     Page
                                                                            
           Item 1   Financial Statements (Unaudited).

                    Condensed  Consolidated  Statements  of  Operations  for the
                    three and six months ended June 30, 2004 and 2003.                  3

                    Condensed  Consolidated  Balance Sheets at June 30, 2004 and
                    December 31, 2003.                                                  4

                    Condensed Consolidated Statements of Cash Flows for the six
                    months ended June 30, 2004 and 2003.                                5

                    Notes to Condensed Consolidated Financial Statements.              6-10

           Item 2   Management's Discussion and Analysis of Financial Condition
                    and Results of Operations.                                         11-17

           Item 3   Quantitative and Qualitative Disclosures about Market Risk.         18

           Item 4   Controls and Procedures                                             18

 PART II   OTHER INFORMATION

           Item 6   Exhibits and Reports on Form 8-K                                    19

           Signature                                                                    20

           Certifications                                                              21-24






                  LIFE SCIENCES RESEARCH, INC. AND SUBSIDIARIES

PART I            FINANCIAL INFORMATION

ITEM 1            FINANCIAL STATEMENTS



                 CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS
                                    Unaudited


                                                      Three months ended June 30          Six months ended
                                                                                              June 30

(Dollars in thousands, except per share data)            2004           2003            2004            2003

                                                                                          
Net revenues                                             $38,315         $32,663        $75,551         $64,564
Cost of revenues                                        (28,111)        (25,442)       (57,546)        (50,815)
                                                      -----------    ------------    -----------     -----------
Gross profit                                              10,204           7,221         18,005          13,749
Selling, general and administrative expenses             (6,201)         (5,395)       (11,686)        (10,316)
Other operating expenses                                       -           (132)              -           (132)
                                                      -----------    ------------    -----------     -----------
Operating income                                           4,003           1,694          6,319           3,301
Interest income                                               14              23             28              39
Interest expense                                         (1,593)         (1,444)        (3,169)         (3,152)
Other (expense)/income                                     (625)           2,179            730           1,729
                                                      -----------    ------------    -----------     -----------
Income before income taxes                                 1,799           2,452          3,908           1,917
Income tax expense                                         (597)           (592)        (1,313)           (415)
                                                      -----------    ------------    -----------     -----------
Net income                                                $1,202          $1,860         $2,595          $1,502
                                                      -----------    ------------    -----------     -----------
Income per common share
- - Basic                                                    $0.10           $0.16          $0.22           $0.13
- - Diluted                                                  $0.10           $0.15          $0.21           $0.12

Weighted average common shares outstanding
- - Basic     (000's)                                       12,050          11,932         12,045          11,932
- - Diluted  (000's)                                        12,346          12,244         12,554          12,332

<FN>

See Notes to Condensed Consolidated Financial Statements.
</FN>







                      CONDENSED CONSOLIDATED BALANCE SHEETS



(Dollars in thousands, except per share data)                            June 30,           December 31,
                                                                             2004                   2003
ASSETS                                                                  Unaudited                Audited
Current assets:
                                                                                          
Cash and cash equivalents                                                 $15,135                $17,271
Accounts receivable, net of allowance of $546 and $561 in
    2004 and 2003 respectively                                             23,360                 17,515
Unbilled receivables                                                       13,485                  8,246
Inventories                                                                 1,771                  1,901
Prepaid expenses and other current assets                                   3,573                  4,610
                                                                  ----------------       ----------------
Total current assets                                                       57,324                 49,543

Property and equipment, net                                               103,000                101,547
Goodwill                                                                      847                    832
Unamortized Capital Bonds issue costs                                         345                    429
Deferred income taxes                                                       3,521                  3,922
                                                                  ----------------       ----------------
Total assets                                                             $165,037               $156,273
                                                                  ----------------       ----------------

LIABILITIES AND SHAREHOLDERS' EQUITY/(DEFICIT)
Current liabilities:
Accounts payable                                                          $10,124                $12,508
Accrued payroll and other benefits                                          2,525                  4,152
Accrued expenses and other liabilities                                     17,478                 13,695
Short term debt                                                               263                    338
Fees invoiced in advance                                                   28,638                 22,761
                                                                   ---------------       ----------------
Total current liabilities                                                  59,028                 53,454

Long-term debt                                                             87,649                 87,560
Pension liabilities                                                        22,097                 21,414
Deferred income taxes                                                       3,237                  2,291
                                                                   ---------------       ----------------
Total liabilities                                                         172,011                164,719
                                                                   ---------------       ----------------
Commitments and contingencies

Shareholders' equity/(deficit)
Voting Common Stock, $0.01 par value.  Authorized 50,000,000
Issued and outstanding at June 30, 2004: 12,049,534 (December
31, 2003: 12,034,883)                                                         120                    120
Non-Voting Common Stock, $0.01 par value.  Authorized 5,000,000
Issued and outstanding: None                                                    -                      -
Preferred Stock, $0.01 par value.  Authorized 5,000,000
Issued and outstanding: None                                                    -                      -
Paid in capital                                                            75,123                 75,101
Less: Promissory notes for the issuance of common stock                     (643)                  (661)
Accumulated comprehensive loss                                           (24,136)               (22,973)
Accumulated deficit                                                      (57,438)               (60,033)
                                                                   ---------------       ----------------
Total shareholders' equity /(deficit)                                     (6,974)                (8,446)
                                                                   ---------------       ----------------
Total liabilities and shareholders' equity /(deficit)                    $165,037               $156,273
                                                                   ---------------       ----------------
<FN>

See Notes to Condensed Consolidated Financial Statements.
</FN>





                  LIFE SCIENCES RESEARCH, INC. AND SUBSIDIARIES

                 CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS
                                    Unaudited


                                                                                Six months ended June 30
(Dollars in thousands)                                                       2004                   2003

                                                                                          
Cash flows from operating activities:
Net income                                                                 $2,595                 $1,502

Adjustments to reconcile net income to net cash used in operating
activities:
Depreciation and amortization                                               4,609                  4,271
Foreign exchange (gain)/loss on Capital Bonds                               (730)                (1,127)
Gain on repurchase of Capital Bonds                                             -                  (602)
Deferred income taxes                                                       1,307                    413
Provision for (gains)/losses on accounts receivable                          (15)                    128
Amortization of warrants                                                       96                    242
Amortization of Capital Bonds issue costs                                      89                     84

Changes in operating assets and liabilities:
Accounts receivable, unbilled receivables and prepaid expenses            (9,286)                (2,049)
Inventories                                                                   156                   (10)
Accounts payable, accrued expenses and other liabilities                    (784)                  1,036
Fees invoiced in advance                                                    5,704                (2,493)
                                                                    --------------        ---------------
Net cash provided by operating activities                                  $3,741                 $1,395
                                                                    --------------        ---------------
Cash flows used in investing activities:
Purchase of property and equipment                                        (4,640)                (3,835)
                                                                    --------------        ---------------
Net cash used in investing activities                                    $(4,640)               $(3,835)
                                                                    --------------        ---------------
Cash flows provided by financing activities:
Proceeds from issue of Voting Common Stock                                     40                     48
Repayments of long-term borrowings                                              -                (1,328)
Repayments of short term borrowings                                         (546)                  (177)
                                                                    --------------        ---------------
Net cash used in financing activities                                      $(506)               $(1,457)
                                                                    --------------        ---------------
Effect of exchange rate changes on cash and cash equivalents                (731)                  (102)
                                                                    --------------        ---------------

Decrease in cash and cash equivalents                                     (2,136)                (3,999)
Cash and cash equivalents at beginning of period                           17,271                 14,644
                                                                    --------------        ---------------
Cash and cash equivalents at end of period                                $15,135                $10,645
                                                                    ==============        ===============
Supplementary disclosures

Interest paid in the period                                                $2,897                 $2,798
Taxes paid:-
           Japanese corporate taxes                                           139                      -
           US State taxes                                                       5                      -

<FN>

See Notes to Condensed Consolidated Financial Statements.
</FN>





                  LIFE SCIENCES RESEARCH, INC. AND SUBSIDIARIES
              NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS
                             June 30, 2004 and 2003
                                    Unaudited

1.       THE COMPANY AND ITS OPERATIONS

Business

Life  Sciences  Research,  Inc.  ("LSR")  and  subsidiaries  (collectively,  the
"Company")  is a  global  contract  research  organization,  offering  worldwide
pre-clinical and non-clinical  testing for biological safety evaluation research
services to pharmaceutical,  biotechnology, agrochemical and industrial chemical
companies.  The Company  serves the rapidly  evolving  regulatory and commercial
requirements to perform safety evaluations on new  pharmaceutical  compounds and
chemical  compounds  contained  within the products that humans use, eat and are
otherwise  exposed  to.  In  addition,  the  Company  tests  the  effect of such
compounds on the  environment and also performs work on assessing the safety and
efficacy of veterinary products.

Organization

LSR was incorporated on July 19, 2001 as a Maryland  corporation.  It was formed
specifically  for the  purpose  of making a  recommended  all share  offer  (the
"Offer") for Life  Sciences  Research  Ltd (LSR Ltd)  formerly  Huntingdon  Life
Sciences  Group plc  ("Huntingdon").  The Offer was made on October 16, 2001 and
was  declared  unconditional  on January 10,  2002,  at which time LSR  acquired
approximately  89% of the outstanding  ordinary shares of Huntingdon in exchange
for  approximately 5.3 million shares of LSR Voting Common Stock. The subsequent
offer period expired on February 7, 2002, by which time approximately 92% of the
outstanding  ordinary  shares had been offered for  exchange.  LSR completed its
compulsory purchase under UK law of the remaining outstanding ordinary shares of
Huntingdon  on March 26,  2002 at which time  Huntingdon  became a wholly  owned
subsidiary of LSR, in exchange for a total of  approximately  5.9 million shares
of LSR Voting Common Stock (the "Exchange Offer").

Under accounting principles generally accepted in the United States ("US GAAP"),
the  Company  whose  stockholders  retain the  majority  interest  in a combined
business must be treated as the acquirer for accounting  purposes.  Accordingly,
the  Exchange  Offer is accounted  for as a reverse  acquisition  for  financial
reporting purposes.  The reverse acquisition is deemed a capital transaction and
the net assets of Huntingdon  (the  accounting  acquirer) are carried forward to
LSR (the legal acquirer and the reporting entity) at their carrying value before
the combination.  Although Huntingdon was deemed to be the acquiring corporation
for financial accounting and reporting purposes,  the legal status of LSR as the
surviving corporation does not change. The relevant acquisition process utilizes
the capital  structure of LSR and the assets and  liabilities  of Huntingdon are
recorded  at  historical  cost.  The equity of LSR is the  historical  equity of
Huntingdon, retroactively restated to reflect the number of shares issued in the
Exchange Offer.

LSR's executive office is based at the Princeton  Research Center in New Jersey,
US.




2.       SIGNIFICANT ACCOUNTING POLICIES

i)       Basis of Presentation

The accompanying  unaudited condensed  consolidated financial statements reflect
all  adjustments  of a normal  recurring  nature,  which are,  in the opinion of
management,  necessary for a fair statement of the results of operations for the
interim periods presented.  The condensed  consolidated financial statements are
unaudited  and are subject to such  year-end  adjustments  as may be  considered
appropriate and should be read in conjunction  with the historical  consolidated
financial  statements  of LSR  years  ended  December  31,  2003,  2002 and 2001
included in LSR's Annual Report on Form 10-K for the fiscal year ended  December
31, 2003. Operating results for the three-month and six month periods ended June
30, 2004 are not necessarily  indicative of the results that may be expected for
the year ending December 31, 2004.

These  financial  statements  have been prepared in accordance  with US GAAP and
under the same accounting principles as the financial statements included in the
Annual Report on Form 10-K. Certain information and footnote disclosures related
thereto  normally  included in the financial  statements  prepared in accordance
with the US GAAP have been omitted in  accordance  with Rule 10-01 of Regulation
S-X.

ii)      Stock-Based Compensation

The Company  has stock  option and  stock-based  compensation  plans,  which are
described in detail in Note 2 of our audited  consolidated  financial statements
included in our Annual Report on Form 10-K for the year ended December 31, 2003.
Under the Long Term Incentive Plan (LTIP),  the Company granted 439,275 ten-year
stock  options to  executives  on June 1, 2004.  These options will vest 100% on
March 31, 2007 for those executives who remain employed with the Company through
that date.

Effective  January  1,  2003,  the  Company  adopted  FASB  Statement  No.  148,
Accounting for Stock-Based  Compensation - Transition and Disclosure.  Statement
No. 148 amends FASB Statement No. 123, Accounting for Stock-Based  Compensation,
to  provide,  among  other  things,  prominent  disclosure  of the effects of an
entity's accounting policy with respect to stock-based employee  compensation on
reported  net income and  earnings  per share in annual  and  interim  financial
statements.  The  Company  intends to  continue  to follow  the  disclosure-only
provisions of FASB Statement No. 123 and, accordingly,  will continue to account
for these plans under the recognition and measurement  principles of APB Opinion
No. 25, Accounting for Stock Issued to Employees,  and related  interpretations.
Under APB 25, when stock options are issued with an exercise  price equal to the
market price of the underlying stock price on the date of grant, no compensation
expense is recognized.





ii)      Stock-Based Compensation (Cont'd)

No  compensation  cost is recorded for options  granted under the Company's plan
since all options  granted are issued with an exercise price equal to the market
value of the  underlying  common stock on the date of grant,  and employees must
pay for these stock issuances. The following table illustrates the effect on net
income and  earnings  per share for the three and six months ended June 30, 2004
and 2003 had the Company applied the fair value  recognition  provisions of FASB
Statement  No.  123,  Accounting  for  Stock-Based  Compensation,  to all of its
stock-based employee compensation plans.



                                               Three months ended June 30       Six months ended June 30
                                                    2004             2003           2004           2003
                                                                                      

(Dollars in thousands, except per share data)
Net Income, as reported                             $1,202          $1,860         $2,595         $1,502

Deduct: Total stock-based employee
compensation expense determined under fair
value based method for all awards, net of
related tax effects                                     $-            $(5)          $(31)          $(64)

Pro forma net income                                $1,202          $1,855         $2,564         $1,438

Earnings per share:
Basic - as reported                                  $0.10           $0.16          $0.22          $0.13
Basic - pro forma                                    $0.10           $0.16          $0.21          $0.12
Diluted - as reported                                $0.10           $0.15          $0.21          $0.12
Diluted - pro forma                                  $0.10           $0.15          $0.20          $0.12


The per share  weighted  average fair value of stock  options  granted was $1.82
during the three  months  ended June 30, 2004 (there were no grants in the three
months  ended June 30,  2003),  and $1.82 and $1.03  during the six months ended
June 30,  2004 and 2003  respectively.  The  options  granted  prior to 2002 are
considered  to have no  value.  These  fair  values  were  estimated  using  the
Black-Scholes option-pricing model, based on the following assumptions:



                                         3 Months ended June 30       6 Months ended June 30
                                          2004             2003        2004           2003
                                                                         
Dividend yield                             0%               0%          0%             0%
Volatility                                 40%             40%          40%            40%
Risk-free interest rate                   3.72%           3.72%        3.72%          3.72%
Expected term of options (in years)        10               10          10             10






3.       SEGMENT ANALYSIS

The Company  operates  within two segments based on  geographical  markets,  the
United Kingdom and the United States.  The Company has one continuing  activity,
Contract Research.

The analysis of the Company's  net revenues and operating  income by segment for
the three and six month  periods  ended  June 30,  2004 and June 30,  2003 is as
follows:



                                  Three months ended June 30          Six months ended
                                                                          June 30
                                     2004            2003           2004            2003
(Dollars in thousands)
                                                                        
Net revenues
                          UK           30,590          25,873         60,756          51,248
                          US            7,725           6,790         14,795          13,316
                                   -----------     -----------    -----------     -----------
                                      $38,315         $32,663        $75,551         $64,564
                                   ===========     ===========    ===========     ===========

Operating income before other operating
expenses
                          UK            3,253           1,614          5,374           3,044
                          US              750             212            945             389
                                   -----------     -----------    -----------     -----------
                                       $4,003          $1,826         $6,319          $3,433
                                   ===========     ===========    ===========     ===========

Other operating expenses
                          UK                -           (107)              -           (107)
                          US                -            (25)              -            (25)
                                   -----------     -----------    -----------     -----------
                                           $-          $(132)             $-          $(132)
                                   ===========     ===========    ===========     ===========

Operating income
                          UK            3,253           1,507          5,374           2,937
                          US
                                          750             187            945             364
                                   -----------     -----------    -----------     -----------
                                       $4,003          $1,694         $6,319          $3,301
                                   ===========     ===========    ===========     ===========

4.       REFINANCING

On March 28, 2002, LSR closed the sale in a private placement of an aggregate of
5,085,334  shares of Voting  Common Stock at a price of $1.50 per share.  Of the
aggregate proceeds of approximately $7.6 million, $4.4 million was in cash, $2.4
million  represented  conversion  into  equity of debt owed to Mr.  Baker  ($2.1
million) and Focused Healthcare Partners ("FHP") ($0.3 million) and $825,000 was
paid with promissory  notes. A net $141,000 of such promissory  notes was repaid
during 2002. A net $23,000 was repaid in 2003, and a further  $28,000 was repaid
in the first half of 2004, offset by a foreign exchange movement of $10,000.





5.       COMMITMENTS AND CONTINGENCIES

(i)  The  Company is party to certain  legal  actions  arising out of the normal
     course of its business. In management's opinion, none of these actions will
     have a material effect on the Company's operations,  financial condition or
     liquidity. No form of proceedings has been brought,  instigated or is known
     to be contemplated against the Company by any governmental agency.

(ii) The Compensation  Committee approved as of June 1, 2004 a performance based
     cash bonus award for  executives.  This award,  issued  under the Long Term
     Incentive Plan (LTIP),  will award cash compensation to select  individuals
     if certain performance goals relating to operations are reached by December
     31,  2006.  The  amount  of the  award  varies  based  upon  the  level  of
     performance,  with a complete  default  of the award if  minimum  operating
     levels are not achieved.

     Management is ratably accruing, as compensation expense, an amount equal to
     the currently estimated cash bonus over the performance period.  Management
     will  reevaluate  this estimate  periodically  throughout  the  performance
     period and, if applicable, will adjust the estimate accordingly.



                  LIFE SCIENCES RESEARCH, INC. AND SUBSIDIARIES

ITEM 2  MANAGEMENT'S  DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS
        OF OPERATIONS

1.      RESULTS OF OPERATIONS

a)   Three months ended June 30, 2004  compared with three months ended June 30,
     2003.

Net revenues for the three  months  ended June 30, 2004 were $38.3  million,  an
increase of 17.3% on net  revenues of $32.7  million for the three  months ended
June 30, 2003. Excluding the effect of exchange rate movements, the increase was
7.6%.  UK net  revenues  increased  by 18.2%;  at  constant  exchange  rates the
increase was 5.9%.  In the US, net revenues  increased by 13.8%.  Net new orders
for the three months ended June 30, 2004 at constant  exchange  rates,  were 21%
above the same  period  last  year.  This  growth in net new  orders,  which was
particularly  strong  from the  pharmaceutical  industry,  coming  on top of the
record level of orders taken in the first quarter, has fed through into revenues
in the quarter,  but has been partly  offset by a decline in  non-pharmaceutical
business.

Cost of revenues for the three months ended June 30, 2004 were $28.1 million, an
increase  of 10.5 % on cost of revenue  of $25.4  million  for the three  months
ended June 30,  2003.  Excluding  the effects of exchange  rate  movements,  the
increase was 1.6%. UK cost of revenues  increased by 9.5%; at constant  exchange
rates there was a decrease of 1.5%  reflecting  the  consolidation  of duplicate
facilities in response to changes in the market  announced at the year end, with
headcount  reducing by 75 compared with June 2003. US cost of revenues increased
by 6.3%, a slower rate than the increase in revenues as a result of tighter cost
control on labor and materials.

Selling,  general  and  administrative  expenses  (SG&A)  rose by  14.9% to $6.2
million  for the three  months  ended  June 30,  2004 from $5.4  million  in the
corresponding  period in 2003. Excluding the effects of exchange rate movements,
the increase was 3.9%. UK SG&A increased by 18.9% over the corresponding  period
in 2003; at constant exchange rates UK SG&A increased by 4.1%. US SG&A increased
by 3.3%.

Other  operating  expenses  for the three  months  ended  June 30,  2003 of $0.1
million  related to specific legal and other actions taken against animal rights
groups.

Net interest  expense for the three months ended June 30, 2004 was $1.6 million,
which was $0.1 million higher than the net interest expense for the three months
ended June 30, 2003. Excluding the effects of exchange rate movements, there was
a net decrease of 0.6% due to lower  borrowings  and a lower charge for warrants
(as a result of the repayment of related party loans in 2003).

Other expense in the three months ended June 30, 2004 of $0.6 million relates to
the non-cash foreign exchange  remeasurement loss which arose on the Convertible
Capital  Bonds  denominated  in US  dollars  (the  functional  currency  of  the
financial   subsidiary   that  holds  the  bonds  in  UK  sterling),   with  the
strengthening of the dollar against sterling. In the three months ended June 30,
2003,  other income of $2.2 million  related to the  non-cash  foreign  exchange
remeasurement  gain of $2.0 million that arose on the Convertible  Capital Bonds
with the weakening of the dollar against sterling,  and $0.2 million gain on the
repurchase of Capital Bonds.

The income tax  expense on income for the three  months  ended June 30, 2004 was
$0.6  million,  which was  primarily  a  non-cash  charge  due to the  company's
operating loss carry forwards. The income tax expense for the three months ended
June 30, 2003 was $0.6 million.

The overall net income for the three months ended June 30, 2004 was $1.2 million
compared to $1.9 million for the three months ended June 30, 2003. The reduction
in the net income of $0.7  million is due to an  increase  in  non-cash  foreign
exchange  remeasurement  loss of $2.6  million,  a  decrease  in the gain on the
repurchase of the Capital Bonds of $0.2 million,  and an increase in interest of
$0.2 million; offset by an increase in the operating income of $2.3 million.

Basic  income per common  share was 10 cents,  compared to 16 cents last year on
the weighted average common shares outstanding of 12,049,534 (2003: 11,932,338).

Earnings  before  interest,  taxes,  depreciation  and  amortization,  and other
income/(expense)  ("EBITDA") was $6.3 million for the second quarter of 2004, or
16.4% of revenues, compared with $3.8 million, or 11.7% of revenues for the same
period in the prior year.

The Company  believes that EBITDA  information,  which for this Company excludes
other  income/(expense),  enhances an investor's  understanding of our financial
performance and our ability to satisfy  principal and interest  obligations with
respect  to our  indebtedness.  However,  EBITDA  should  not be  considered  in
isolation or viewed as a substitute for net income, cash flow from operations or
other  measures  of  performance  as defined by  generally  accepted  accounting
principles in the United States.  We understand that while securities  analysts,
lenders  and others in their  evaluation  of  companies  frequently  use EBITDA,
EBITDA as used herein is not necessarily  comparable to other  similarly  titled
captions of other  companies due to potential  inconsistencies  in the method of
calculation. Our management uses EBITDA to assess financial performance and debt
service capabilities. In assessing financial performance, our management reviews
EBITDA as a general indicator of economic performance compared to prior periods.
Because EBITDA excludes interest, income tax, depreciation and amortization, and
other  income/(expense),  EBITDA  provides  an  indicator  of  general  economic
performance  that is not  affected by changes in debt  levels,  fluctuations  in
interest rates or effective tax rates,  levels of depreciation and amortization,
or exchange rate  movements on the Capital Bonds.  Our management  believes this
type of measurement is useful for comparing general  operating  performance from
period to period and making  certain  management  decisions.  Nevertheless,  our
management  recognizes that there are material  limitations  associated with the
use of EBITDA as  compared  to net  income,  which  reflects  overall  financial
performance,   including   the  effects  of   interest,   taxes,   depreciation,
amortization and other income/(expense).

b)   Six months  ended June 30,  2004  compared  with six months  ended June 30,
     2003.

Net  revenues  for the six months  ended June 30,  2004 were $75.6  million,  an
increase of 17.0% on net revenues of $64.6 million for the six months ended June
30, 2003.  Excluding  the effect of exchange  rate  movements,  the increase was
6.2%.  UK net  revenues  increased  by 18.6%;  at  constant  exchange  rates the
increase  was 4.9%.  In the US, net revenues  increased by 11.1%.  After an 8.5%
decline in net new orders at constant  exchange rates in the year ended December
31, 2003 compared to 2002, net new orders for the six months ended June 30, 2004
at constant exchange rates were 28% above the same period last year. This growth
in net new  orders,  which  was  particularly  strong  from  the  pharmaceutical
industry,  has fed through into revenues in the six months,  but has been partly
offset by a decline in non-pharmaceutical business.

Cost of revenues for the six months ended June 30, 2004 were $57.5  million,  an
increase of 13.2 % on cost of revenue of $50.8  million for the six months ended
June 30, 2003.  Excluding the effects of exchange rate  movements,  the increase
was 2.9%. UK cost of revenues increased by 13.4%; at constant exchange rates the
increase was 0.5%,  reflecting  the  consolidation  of duplicate  facilities  in
response to changes in the market (with  headcount  reducing by 75 compared with
June 2003)  offset by the  increase  in volume,  mainly  direct  materials  cost
increases. US cost of revenues increased by 8.0%, a lower rate than the increase
in revenues as a result of tighter cost control.

Selling,  general  and  administrative  expenses  (SG&A)  rose by 13.3% to $11.7
million  for the six  months  ended  June 30,  2004 from  $10.3  million  in the
corresponding  period in 2003. Excluding the effects of exchange rate movements,
the increase was 2.9%. UK SG&A increased by 16.9% over the corresponding  period
in 2003; at constant exchange rates UK SG&A increased by 3.3%. US SG&A increased
by 1.0%.

Other  operating  expenses for the six months ended 2003 of $0.1 million related
to specific legal and other actions taken against animal rights groups.

Net interest  expense for the six months  ended June 30, 2004 was $3.1  million,
which was the same as the net interest expense for the six months ended June 30,
2003. Excluding the effects of exchange rate movements, there was a net decrease
of 10.6% due to lower  borrowings,  and a lower charge for warrants (as a result
of the repayment of related party loans in 2003).

Other income in the six months  ended June 30, 2004 of $0.7  million  relates to
the non-cash foreign exchange  remeasurement gain which arose on the Convertible
Capital  Bonds  denominated  in US  dollars  (the  functional  currency  of  the
financial subsidiary that holds the bonds in UK sterling), with the weakening of
the dollar against sterling. In the six months ended June 30, 2003, other income
of $1.7 million related to the non-cash foreign exchange  remeasurement  gain of
$1.1 million that arose on the  Convertible  Capital Bonds with the weakening of
the dollar against sterling,  and $0.6 million gain on the repurchase of Capital
Bonds.

The income tax expense on income for the six months ended June 30, 2004 was $1.3
million,  which was primarily a non-cash  charge due to the company's  operating
loss carry  forwards.  The income tax expense for the six months  ended June 30,
2003 was $0.4  million.  The  gross  net  operating  losses  in the US are $11.2
million at 30 June  2004;  with  gross net  operating  losses in the UK of $57.7
million.

The overall net income for the six months  ended June 30, 2004 was $2.6  million
compared to $1.5 million for the six months ended June 30, 2003. The improvement
in the net income of $1.1 million is due to an increase in the operating  income
of $3.0 million; offset by a decrease in non-cash foreign exchange remeasurement
gains of $0.4  million,  an increase in the income tax expense of $0.9  million,
and a  reduction  in the gain on the  repurchase  of the  Capital  Bonds of $0.6
million.

Basic  income per common  share was 22 cents,  compared to 13 cents last year on
the weighted average common shares outstanding of 12,044,704 (2003: 11,932,338).

EBITDA for the six months  ended June 30,  2004 was $10.9  million,  or 14.5% of
revenues, compared with $7.6 million or 11.7% of revenues for the same period in
2003.

2.       LIQUIDITY & CAPITAL RESOURCES

Bank Loan and Non-Bank Loans

On January 20, 2001, the Company's  non-bank loan of (pound)22.6  million ($41.0
million  approximately),  was  refinanced  by  Stephens'  Group  Inc.  and other
parties.  The loan was  transferred  from  Stephens  Group Inc., to an unrelated
third party  effective  February 11, 2002.  It is now repayable on June 30, 2006
and  interest is payable  quarterly  at LIBOR plus  1.75%.  At the same time the
Company was required to take all  reasonable  steps to sell off some of its real
estate assets through  sale/leaseback  transactions  and/or  obtaining  mortgage
financing  secured by the Company's  real estate assets to discharge  this loan.
The loan is held by Life Sciences Research Ltd (LSR Ltd.), and is secured by the
guarantees  of the  Company's  wholly  owned  subsidiaries,  including  LSR Ltd,
Huntingdon   Life  Sciences  Ltd,  and   Huntingdon   Life  Sciences  Inc.,  and
collateralized by all the assets of these companies.

On October 9, 2001, on behalf of  Huntingdon,  LSR issued to Stephens Group Inc.
warrants  to  purchase  up to  704,425  shares of LSR Voting  Common  Stock at a
purchase price of $1.50 per share. The warrants were subsequently transferred to
an unrelated third party.  The LSR warrants are exercisable at any time and will
expire on October 9, 2011.  These warrants arose out of  negotiations  regarding
the  refinancing of the bank loan by the Stephens Group Inc. in January 2001. In
accordance  with APB Opinion No. 14,  Accounting for  Convertible  Debt and Debt
Issued with Stock  Purchase  Warrants  ("APB 14"), the warrants were recorded at
their pro rata fair values in relation to the  proceeds  received on the date of
issuance. As a result, the value of the warrants was $430,000.




Convertible Capital Bonds

The remainder of the Company's  long term  financing is provided by  Convertible
Capital  Bonds  repayable in September  2006.  At the time of the issue in 1991,
these bonds were for $50 million par and at June 30,  2004,  $46.2  million were
outstanding. They carry interest at a rate of 7.5% per annum, payable biannually
in March and  September.  During 2002,  the Company  repurchased  and  cancelled
$2,410,000  principal  amount of such bonds  resulting  in a $1.2  million  gain
recorded in other  income/expense.  In 2003 the Company further  repurchased and
cancelled  $1,345,000 principal amount of such bonds resulting in a gain of $0.6
million recorded in other  income/expense.  At the current  conversion rate, the
number of shares of Voting Common Stock to be issued on conversion  and exchange
of each unit of $10,000  comprised in a Bond would be 49. The conversion rate is
subject to adjustment in certain circumstances.

Related Party Loans

On June 11, 2002 LSR issued to Focus  Healthcare  Partners  ("FHP")  warrants to
purchase up to 410,914  shares of LSR Voting Common Stock at a purchase price of
$1.50 per share. The LSR warrants are exercisable at any time and will expire on
June 11, 2012. These warrants arose out of negotiations  regarding the provision
of a $2.9 million loan facility  made  available to the Company on September 25,
2000 by Mr.  Baker,  a director of the Company,  who controls FHP. This loan was
paid in full in 2002.  In  accordance  with APB 14 the  loan and  warrants  were
recorded at their pro rata fair values in relation to the proceeds received.  As
a result, the value of the warrants was $250,000.

Common Shares

On March 28, 2002, LSR closed the sale in a private placement of an aggregate of
5,085,334  shares of Voting  Common Stock at a price of $1.50 per share.  Of the
aggregate proceeds of approximately $7.6 million, $4.4 million was in cash, $2.4
million  represented  conversion  into  equity of debt owed to Mr.  Baker  ($2.1
million) and FHP ($0.3 million) and $825,000 was paid with  promissory  notes. A
net $141,000 of such promissory  notes was repaid during 2002, a net $23,000 was
repaid in 2003,  and a further  $28,000  was  repaid in the first  half of 2004,
offset by an increase due to foreign exchange movements of $10,000.

Cash flows

During the three  months  ended  June 30,  2004,  funds used were $0.3  million,
reducing cash and cash equivalents from $15.4 million at March 31, 2004 to $15.1
million at June 30, 2004.

In the six months to June 30, 2004, funds used were $2.1 million,  reducing cash
and cash equivalents from $17.3 million in December 31, 2003 to $15.1 million at
June 30, 2004.

Net days sales  outstanding  ("DSOs") at June 30, 2004 were 22 days, an increase
from the 17 days at both March 31, 2004 and December 31, 2003. DSO is calculated
as a sum of accounts receivables,  unbilled receivables and fees in advance over
total  revenue.  Since January 1999,  DSOs at the quarter end have varied from 9
days to 47 days so they are currently at a relatively  low level.  The impact on
liquidity from a one-day change in DSO is approximately $432,000.




3.       CRITICAL ACCOUNTING POLICIES

Management's  Discussion  and  Analysis of  Financial  Condition  and Results of
Operations discusses the Company's consolidated financial statements, which have
been prepared in accordance  with US GAAP.  The Company  considers the following
accounting policies to be critical accounting policies.

Revenue recognition

The majority of the  Company's  net revenues  have been earned under  contracts,
which generally range in duration from a few months to three years. Revenue from
these  contracts  is  generally  recognized  over the term of the  contracts  as
services are rendered.  Contracts may contain  provisions for  renegotiations in
the  event of  changes  in the level of work  scope.  Renegotiated  amounts  are
included in net revenue when earned and  realization is assured.  Provisions for
losses to be incurred on contracts are recognized in full in the period in which
it is determined  that a loss will result from  performance  of the  contractual
arrangement.  The Company's customers may terminate most service contracts for a
variety of reasons,  either  immediately  or upon notice of a future  date.  The
contracts  generally  require payments to the Company to recover costs incurred,
including costs to wind down the study,  and payment of fees earned to date, and
in some cases to provide the  Company  with a portion of the fees or income that
would have been earned under the  contract had the contract not been  terminated
early.

Unbilled  receivables  are  recorded  for  revenue  recognized  to date  that is
currently  not  billable to the  customer  pursuant  to  contractual  terms.  In
general,  amounts become billable upon the achievement of certain aspects of the
contract  or  in  accordance  with  predetermined  payment  schedules.  Unbilled
receivables  are  billable  to  customers  within  one year from the  respective
balance sheet date. Fees in advance are recorded for amounts billed to customers
for whom  revenue has not been  recognized  at the  balance  sheet date (such as
upfront  payments  upon  contract   authorization,   but  prior  to  the  actual
commencement of the study).

If the Company does not accurately  estimate the resources required or the scope
of work to be  performed,  or does not manage its projects  properly  within the
planned  periods of time or satisfy its  obligations  under the contracts,  then
future  margins  may be  significantly  and  negatively  affected  or  losses on
existing contracts may need to be recognized.  Any such resulting  reductions in
margins  or  contract  losses  could be  material  to the  Company's  results of
operations.

Use of estimates

The  preparation  of financial  statements in  conformity  with US GAAP requires
management to make estimates and assumptions that affect the reported amounts of
assets and liabilities and disclosure of contingent assets and liabilities as of
the dates of the financial  statements and the results of operations  during the
reporting periods. These also include management estimates in the calculation of
pension  liabilities  covering  discount rates,  return on plan assets and other
actuarial assumptions. Although these estimates are based upon management's best
knowledge of current events and actions,  actual results could differ from those
estimates.

Taxation

The Company  accounts  for income  taxes under the  provisions  of  Statement of
Financial  Accounting  Standards ("SFAS") No. 109, "Accounting For Income Taxes"
("SFAS  109").  SFAS  109  requires  recognition  of  deferred  tax  assets  and
liabilities for the estimated future tax consequences of events  attributable to
differences  between the financial statement carrying amounts of existing assets
and liabilities and their respective tax bases and operating loss and tax credit
carry  forwards.  Deferred tax assets and liabilities are measured using enacted
rates in  effect  for the year in  which  the  differences  are  expected  to be
recovered  or settled.  The effect on  deferred  tax assets and  liabilities  of
changes in tax rates is  recognized in the statement of operations in the period
in which the enactment  rate changes.  Deferred tax assets and  liabilities  are
reduced  through the  establishment  of a valuation  allowance  at such time as,
based on  available  evidence,  it is more likely than not that the deferred tax
assets will not be realized.  While the Company has  considered  future  taxable
income and ongoing prudent and feasible tax planning strategies in assessing the
need  for the  valuation  allowance,  in the  event  that  the  Company  were to
determine  that it would not be able to realize all or part of its net  deferred
tax assets in the future,  an  adjustment  to the  deferred  tax assets would be
charged to income in the period such  determination was made.  Likewise,  should
the Company  determine  that it would be able to realize its deferred tax assets
in the  future  in excess  of its net  recorded  amount,  an  adjustment  to the
deferred tax assets would increase income in the period such  determination  was
made.

Exchange rate fluctuations and exchange controls

The Company operates on a world-wide basis and generally invoices its clients in
the  currency  of the  country in which it  operates.  Thus,  for the most part,
exposure to exchange rate  fluctuations  is limited as sales are  denominated in
the same currency as costs. Trading exposures to currency  fluctuations do occur
as a result of certain  sales  contracts,  performed  in the UK for US  clients,
which are  denominated  in US dollars and contribute  approximately  9% of total
revenues. Management has decided not to hedge against this exposure.

Also,  exchange  rate  fluctuations  may have an  impact on the  relative  price
competitiveness  of the Company vis a vis  competitors  who trade in  currencies
other than  sterling or dollars.  Such  fluctuations  also have an impact on the
translation of the 7.5% Convertible Capital Bonds payable in September 2006.

Finally,  the  consolidated  financial  statements of LSR are  denominated in US
dollars.  Changes in exchange  rates  between the UK pounds  sterling and the US
dollar will affect the translation of the UK subsidiary's financial results into
US dollars for the purposes of reporting the consolidated financial results. The
process by which each foreign subsidiary's financial results are translated into
US dollars is as follows:  income  statement  accounts are translated at average
exchange  rates for the period;  balance sheet asset and liability  accounts are
translated at end of period exchange rates;  and capital accounts are translated
at historical  exchange  rates and retained  earnings are translated at weighted
average of  historical  rates.  Translation  of the balance sheet in this manner
affects  the  stockholders'  equity  account,  referred  to as  the  accumulated
comprehensive  loss.  Management  has decided not to hedge against the impact of
exposures giving rise to these translation adjustments as such hedges may impact
upon the Company's cash flow compared to the  translation  adjustments  which do
not affect cash flow in the medium term.

Exchange rates for translating sterling into US dollars were as follows:



               At December 31         At June 30        3 months to June 30        6 months to June 30
                                                          Average rate (1)           Average rate (1)
                                                                             

    2002           1.6099               1.5243                 1.4636                     1.4453
    2003           1.7857               1.6502                 1.6191                     1.6111
    2004              -                 1.8135                 1.8070                     1.8217
<FN>

(1)  Based on the average of the exchange rates on each day of each month during
     the period.
</FN>



On August 4, 2004 the noon buying rate for sterling was (pound)1.00 = $1.8248.

The  Company  has  not  experienced  difficulty  in  transferring  funds  to and
receiving funds remitted from those  countries  outside the US or UK in which it
operates and Management expects this situation to continue.

While the UK has not at this time  entered  the  European  Monetary  Union,  the
Company has ascertained  that its financial  systems are capable of dealing with
Euro denominated transactions.



The  following  table  summarizes  the  financial  instruments   denominated  in
currencies  other than the US dollar held by LSR and its subsidiaries as of June
30, 2004:


                                                            Expected Maturity Date
                                      2004    2005     2006    2007     2008  Thereafter    Total  Fair
                                                                                                   Value
(In US Dollars, amounts in thousands)
                                                                          
Cash              - Pound Sterling   5,559       -        -       -        -           -    5,559     5,559
                  - Euro               129       -        -       -        -           -      129       129
                  - Japanese Yen     3,083       -        -       -        -           -    3,083     3,083
Accounts
receivable        - Pound Sterling  15,717       -        -       -        -           -   15,717    15,717
                  - Euro             1,201       -        -       -        -           -    1,201     1,201
                  - Japanese Yen     1,480       -        -       -        -           -    1,480     1,480

Debt              - Pound Sterling       -       -   40,960       -        -           -   40,960    40,960
                  - Japanese Yen       108     224      224     113        -           -      669       669



4.       LEGAL PROCEEDINGS

The Company is party to certain legal  actions  arising out of the normal course
of its  business.  In  management's  opinion,  none of these actions will have a
material effect on the Company's  operations,  financial condition or liquidity.
No  form  of  proceedings  has  been  brought,  instigated  or  is  known  to be
contemplated against the Company by any governmental agency.

5.       FORWARD LOOKING STATEMENTS

Statements in this management's  discussion and analysis of financial  condition
and results of  operations,  as well as in certain other parts of this Quarterly
Report on Form 10-Q (as well as information included in oral statements or other
written statements made or to be made by the Company) that look forward in time,
are forward looking  statements  made pursuant to the safe harbor  provisions of
the Private Securities Litigation Reform Act of 1995. Forward looking statements
include  statements  concerning plans,  objectives,  goals,  strategies,  future
events or  performance,  expectations,  predictions,  and  assumptions and other
statements  which are other than  statements of historical  facts.  Although the
Company believes such forward-looking  statements are reasonable, it can give no
assurance that any  forward-looking  statements  will prove to be correct.  Such
forward-looking  statements  are subject  to, and are  qualified  by,  known and
unknown risks,  uncertainties and other factors that could cause actual results,
performance or achievements to differ materially from those expressed or implied
by those statements.  These risks,  uncertainties and other factors include, but
are not limited to the Company's  ability to estimate the impact of  competition
and of industry  consolidation  and risks,  uncertainties and other factors more
fully  described  in  the  Company's   filings  with  the  SEC,   including  its
Registration  Statement on Form S-1,  dated July 12, 2002,  and Annual Report on
Form  10-K  for the  year  ended  December  31,  2003,  each as  filed  with the
Securities and Exchange Commission.



ITEM 3  QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

The Company's (pound)22.6 million  (approximately $41.0 million) credit facility
is sterling  denominated and does not contribute to transaction gains and losses
on the income  statement.  Interest  on all  outstanding  borrowings  under this
credit  facility is based upon LIBOR plus a margin and  approximated  6.090% per
annum for the three months ended June 30, 2004, and 5.944% per annum for the six
months ended June 30 2004. At June 30, 2004 this credit facility was fully drawn
down.

In the three and six months ended June 30, 2004, a 1% change in LIBOR would have
resulted  in  a  fluctuation  in  interest  expense  of  $102,000  and  $206,000
respectively.

For both the three and six months ended June 30, 2004,  approximately 72% of the
Company's net revenues were from outside the United States. The Company does not
engage in derivative  or hedging  activities  related to its  potential  foreign
exchange exposures.

On June 30, 2004, the Company's  $46.2 million  principal  amount of Convertible
Capital Bonds is US dollar  denominated,  but is held by a non-US  subsidiary of
the Company.  As a result,  with respect to these bonds, the Company experiences
exchange  related  gains and  losses  which  only has a  non-cash  impact on the
financial  statements,  based on the  movement of  exchange  rates.  Hence,  the
Company does not take any actions to hedge  against  such risks.  The Company is
unable to predict whether it will experience  future gains or future losses from
such exchange-related risks on the bonds.

See Management's  Discussion and Analysis of Financial  Condition and Results of
Operations.

ITEM 4  CONTROLS AND PROCEDURES

As of June 30, 2004 we carried out an evaluation, under the supervision and with
the participation of management, including our Chief Executive Officer and Chief
Financial  Officer,  of the  effectiveness  of the design and  operation  of our
disclosure controls and procedures  pursuant to Exchange Act Rule 13a-15.  Based
upon that evaluation,  the Chief Executive  Officer and Chief Financial  Officer
concluded that our disclosure  controls and procedures  were effective as of the
quarter  ended June 30, 2004 in timely  alerting  them to  material  information
relating to the Company (including its consolidated subsidiaries) required to be
included in our  periodic SEC  filings.  During the quarter  ended June 30, 2004
there were no significant  changes in internal controls or in other factors that
has materially affected, or are reasonably likely to materially affect, internal
controls over financial reporting.





PART II  OTHER INFORMATION

ITEM 6  EXHIBITS AND REPORTS ON FORM 8-K

(A)     Exhibits

        Exhibit 31.1  Certification of the Chief Executive Officer

        Exhibit 31.2  Certification of the Chief Financial Officer

        Exhibit 32.1  Certification  pursuant  to 18  U.S.C.  Section  1350 as
                      adopted  pursuant to Section 906 of the Sarbanes-Oxley Act
                      of 2002 of the Chief Executive Officer

        Exhibit 32.2  Certification pursuant to 18 U.S.C. Section 1350 as
                      adopted pursuant to Section 906 of the Sarbanes-Oxley Act
                      of 2002 of the Chief Financial Officer

        Exhibit       99.1 Press Release, dated August 5, 2004, announcing the
                      second quarter earnings results for 2004.

(B) Reports on Form 8-K

Current Report on Form 8-K dated May 26, 2004 with respect to Items 5 and 7.




                                    SIGNATURE

Pursuant to the requirements of Section 13 or 15 (d) of the Securities Exchange
Act of 1934, this Quarterly Report on Form 10-Q has been signed below by the
following person on behalf of the Registrant and in the capacities and on the
dates indicated.

                           Life Sciences Research Inc.
                                  (Registrant)


By:      /s/ Richard Michaelson
Name:    Richard Michaelson
Title:   CFO & Secretary
Date:    August 6, 2004