UNITED STATES
                             SECURITIES AND EXCHANGE
                                   COMMISSION
                             WASHINGTON, D.C. 20549

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

                                   FORM 10-Q/A
                                 Amendment No. 1



                   (X) QUARTERLY REPORT PURSUANT TO SECTION 13
                OR 15 (d) OF THE SECURITIES EXCHANGE ACT OF 1934
                       FOR THE QUARTER ENDED JUNE 30, 2002

                                       OR

            ( ) TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF
              THE SECURITIES EXCHANGE ACT OF 1934 (NO FEE REQUIRED)
                         COMMISSION FILE NUMBER 1-10173


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


                          LIFE SCIENCES RESEARCH, INC.
             (EXACT NAME OF REGISTRANT AS SPECIFIED IN ITS CHARTER)
                                    MARYLAND
                 (JURISDICTION OF INCORPORATION OR ORGANIZATION)

            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 __


At July 31, 2002:   11,932,338 Voting Common Stock of $0.01 each




                                EXPLANATORY NOTE

This Amendment No. 1 to the  Registrant's  Quarterly Report on Form 10-Q for the
period ending June 30, 2002 is being filed solely to include as Exhibit 99.2 the
certification  required by Section  906 of the  Sarbanes-Oxley  Act of 2002.  No
revisions have been made to the Registrant's  financial  statements or any other
disclosure contained in such Quarterly Report.






PART II. OTHER INFORMATION

ITEM 6.  EXHIBITS AND REPORTS ON FORM 8-K



         (A)      Exhibits.

         99.2     Certification of Chief Executive Officer and Chief Financial
                  Officer pursuant to Section 906 of the Sarbanes-Oxley Act
                  of 2002.

         (B)      Reports on Form 8-K.

     Current Report on Form 8-K dated June 17, 2002 with respect to Item 5.









                                   SIGNATURES


Pursuant  to the  requirements  of the  Securities  Exchange  Act of  1934,  the
registrant  has duly  caused  this  report  to be  signed  on its  behalf by the
undersigned thereunto duly authorised.


                          LIFE SCIENCES RESEARCH, INC.
                                  (Registrant)


By:      /s/ Richard Michaelson
Name:    Richard Michaelson
Title:   Chief Financial Officer

Date:    August 14, 2002


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                                  EXHIBIT INDEX


Exhibit
No.      Title

99.2     Certification  of Chief  Executive Officer and  Chief Financial Officer
         pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.





                                                                    Exhibit 99.2

                                  Certification

     Pursuant to Section 906 of the  Sarbanes-Oxley Act of 2002 (Subsections (a)
and (b) of Section 1350, Chapter 63 of Title 18, United States Code) Pursuant to
Section  906 of the  Sarbanes-Oxley  Act of  2002  (subsections  (a)  and (b) of
section  1350,  chapter  63 of  title  18,  United  States  Code),  each  of the
undersigned  officers of Life Sciences  Research,  Inc., a Maryland  corporation
(the "Company"), does hereby certify, to such officer's knowledge, that:

         The  Quarterly  Report on Form 10-Q for the quarter ended June 30, 2002
(the "Form 10-Q") of the Company fully complies with the requirements of section
13 (a)  and 15 (d) of the  Securities  Exchange  Act of  1934,  and  information
contained  in the Form 10-Q  fairly  presents,  in all  material  respects,  the
financial condition and results of operations of the Company.



Dated:   August 14, 2002           /s/  Andrew H. Baker
         -----------------------        ----------------------------------------
                                        Andrew H. Baker
                                        Chairman and Chief Executive Officer


Dated:   August 14, 2002           /s/  Richard Michaelson
         -----------------------        ----------------------------------------
                                        Richard Michaelson
                                        Chief Financial Officer


         The  foregoing  certification  is being  furnished  solely  pursuant to
section  906 of the  Sarbanes-Oxley  Act of  2002  (subsections  (a)  and (b) of
section 1350, chapter 63 of title 18, United States Code) and is not being filed
as part of the Form 10-Q or as a separate disclosure document.