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

                                    FORM 10-Q
(Mark One)

[X]   QUARTERLY REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT
      OF 1934

                     For the quarterly period ended May 31, 2010

[  ]  TRANSITION REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT
      OF 1934

                   For the transition period from _____ to _______

                          Commission File Number: None

                      Security Devices International, Inc.
           ----------------------------------------------------------
             (Exact Name of Registrant as Specified in its Charter)

                   Delaware                           Applied For
          ------------------------------          -------------------
         (State or other jurisdiction of           (I.R.S. Employer
          incorporation or organization)          Identification No.)

                           2171 Avenue Rd., Suite 103
                         Toronto, Ontario Canada M5M 4B4
                     --------------------------------------
               (Address of Principal Executive Offices) (Zip Code)

          Registrant's telephone number including area code:  (416) 787-1871

                                       N/A
     ----------------------------------------------------------------------
         Former name, former address, and former fiscal year, if changed
                          since last report

Indicate by check mark whether the registrant (1) filed all reports required to
be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during
the past 12 months (or for such shorter period that the registrant was required
to file such reports), and (2) has been subject to such filing requirements for
the past 90 days. Yes [X] No [ ]

Indicate by check mark whether the registrant has submitted electronically and
posted on its corporate Web site, if any, every Interactive Data File required
to be submitted and posted pursuant to Rule 405 of Regulation S-T (ss.232.405 of
this chapter) during the preceding 12 months (or for such shorter period that
the registrant was required to submit and post such files). Yes [ ] No [ ]

Indicate by check mark whether the registrant is a large accelerated filer, an
accelerated filer, a non-accelerated filer, or a smaller reporting company. See
definition of "large accelerated filer", "accelerated filer" and "smaller
reporting company" in Rule 12b-2 of the Exchange Act.

Larger accelerated filer [  ]       Accelerated filer [  ]
Non-accelerated filer [  ]          Smaller reporting company [X]

Indicate by check mark whether registrant is a shell company (as defined in Rule
12b-2 of the Exchange Act).  Yes [  ]       No  [X]

Indicate the number of shares outstanding of each of the issuer's classes of
common stock, as of the latest practicable date: 16,745,050 shares outstanding
as of May 31, 2010.





                      SECURITY DEVICES INTERNATIONAL, INC.
                        (A Development Stage Enterprise)
                          INTERIM FINANCIAL STATEMENTS
                                  MAY 31, 2010
                        (Amounts expressed in US Dollars)
                                   (Unaudited)






                      SECURITY DEVICES INTERNATIONAL, INC.
                        (A Development Stage Enterprise)
                          INTERIM FINANCIAL STATEMENTS
                                  MAY 31, 2010
                        (Amounts expressed in US Dollars)
                                   (Unaudited)


                                TABLE OF CONTENTS
                                                                         Page No

Interim Balance Sheets as at May 31, 2010 and November 30, 2009               1

Interim Statement of Operations for the six months and three
months ended May 31, 2010 and May 31, 2009 and the period from
Inception (March 1, 2005) to May 31, 2010                                     2

Interim Statement of Cash Flows for the six months ended
May 31, 2010 and May 31, 2009                                                 3

Interim Statements of changes in Stockholders' Equity for
the six months ended May 31, 2010 and for the period from
inception (March 1, 2005) to November 30, 2009                                4

Condensed Notes to Interim Financial Statements                            5-13






SECURITY DEVICES INTERNATIONAL, INC.
(A Development Stage Enterprise)
Interim Balance Sheets
As at May 31, 2010 and November 30, 2009
(Amounts expressed in US Dollars)
                                                     May 31,       November 30,
                                                      2010             2009
                                                     -------       ------------
                                                   (unaudited)       (audited)
                       ASSETS                           $                $
CURRENT
   Cash                                                 892           55,431
   Prepaid expenses and other                        14,962           31,172
                                                  ----------       ----------

Total Current Assets                                 15,854           86,603
Plant and Equipment, net (Note 4)                    25,436           29,924
                                                  ----------       ----------
TOTAL ASSETS                                         41,290          116,527
                                                  ----------       ----------
                     LIABILITIES

CURRENT LIABILITIES
   Accounts payable and accrued liabilities         877,235          691,729
   Advances from a non-related party (note 9)        50,000                -
   Due to related parties (note 7)                   32,250                -
                                                  ----------       ----------
Total Current Liabilities                           959,485          691,729
                                                  ----------       ----------
Going Concern (note 2)

Related Party Transactions (note 7)

Commitments (note 8)

Subsequent events (note 10)


              STOCKHOLDERS' DEFICIT

Capital Stock (Note 5)
Preferred stock, $0.001 par value, 5,000,000
   shares authorized, Nil issued and outstanding
   (2009 - nil)
Common stock, $0.001 par value 50,000,000 shares
   authorized, 16,745,050 issued and outstanding
   (2009 - 15,235,050)                                16,745          15,235
Additional Paid-In Capital                        13,986,860      13,463,251
Deficit Accumulated During the Development Stage (14,921,800)    (14,053,688)
                                                 -----------     -----------

Total Stockholders' Deficit                         (918,195)       (575,202)
                                                 -----------     -----------

TOTAL LIABILITIES AND STOCKHOLDERS' DEFICIT           41,290         116,527
                                                 -----------     -----------


            See condensed notes to the interim financial statements.


                                       1



SECURITY DEVICES INTERNATIONAL, INC.
(A Development Stage Enterprise)
Statements of Operations
For the Six Months and Three Months Ended May 31, 2010
and May 31, 2009 and the Period from inception
(March 1, 2005) to May 31, 2010 (Amounts expressed in US
Dollars) (Unaudited- Prepared by Management)


                                                                     
                                          For the      For the      For the       For the
                                         six months   six months  three months  three months
                            Cumulative     ended        ended        ended         ended
                              Since       May 31,       May 31,      May 31,       May 31,
                            inception      2010          2009         2010          2009
                                             $            $             $             $
OPERATING EXPENSES:

Research and Product
Development Cost           6,977,494      431,221     1,152,676     160,008        616,283
Amortization                  25,085        4,488         4,142       2,244          2,164
General and administration
  (note 6)                 8,191,815      432,403       447,771     159,320        174,510
                           ---------     --------     ---------    --------       --------

TOTAL OPERATING EXPENSES  15,194,394      868,112     1,604,589     321,572        792,957
                         -----------     --------    ----------    --------       --------

LOSS FROM OPERATIONS     (15,194,394)    (868,112)   (1,604,589)   (321,572)      (792,957)

Other Income-Interest        272,594           --         3,054          --             --
                        ------------     --------    ----------    --------      ---------

LOSS BEFORE INCOME TAXES (14,921,800)    (868,112)   (1,601,535)   (321,572)      (792,957)

Income taxes                      --           --            --          --             --
                        ------------     --------    ----------    --------      ---------

NET LOSS                 (14,921,800)    (868,112)   (1,601,535)   (321,572)      (792,957)
                        ------------     --------    ----------    --------      ---------

Loss per share - basic
  and diluted                               (0.05)        (0.11)      (0.02)         (0.06)
                        ------------     --------    ----------  ----------      ---------

Weighted average common
  shares outstanding                   16,462,962    14,447,050  16,745,050     14,447,050
                        ------------   ----------    ----------  ----------     ----------



            See condensed notes to the interim financial statements.


                                       2






SECURITY DEVICES INTERNATIONAL, INC.
(A Development Stage Enterprise)
Interim Statement of Cash Flows
For the Six Months Ended May 31, 2010 and May 31, 2009
(Amounts expressed in US Dollars)
(Unaudited-Prepared by Management)
                                                           For the      For the
                                                          six months  six months
                                           Cumulative       ended       ended
                                         since inception    May 31,     May 31,
                                         (March 1, 2005)    2010         2009
                                                $             $            $

CASH FLOWS FROM OPERATING ACTIVITIES

 Net loss for the period                  (14,921,800)   (868,112)   (1,601,535)
  Items not requiring an outlay of cash:
   Issue of shares for professional services  154,000           -             -
   Stock based compensation (included in
     general and administration expenses)   5,012,238     106,819       114,688
   Compensation expense for warrants issued
     (Included in general and administration
      expenses)                               361,317           -             -
   Loss on cancellation of common stock        34,400           -             -
   Amortization                                25,085       4,488         4,142
   Changes in non-cash working capital:
   Prepaid expenses and other                 (14,962)     16,210        15,667
   Due to related parties                      32,250      32,250             -
   Accounts payable and accrued liabilities   877,235     185,506         3,297
                                          -----------   ---------   -----------

NET CASH USED IN OPERATING ACTIVITIES      (8,440,237)   (522,839)   (1,463,741)
                                          -----------   ---------   -----------

CASH FLOWS FROM INVESTING ACTIVITIES
  Acquisition of Plant and Equipment          (50,521)          -        (3,442)
                                          -----------   ---------   -----------

NET CASH USED IN INVESTING ACTIVITIES         (50,521)          -        (3,442)
                                          -----------   ---------   -----------

CASH FLOWS FROM FINANCING ACTIVITIES

  Net proceeds from issuance of
    common shares                           8,324,150     357,500             -
  Stock subscriptions received                 50,000      50,000             -
  Cancellation of common stock                (50,000)          -             -
  Advances from a non related party            50,000      50,000
  Exercise of stock options                   117,500      10,800             -
                                          -----------   ---------   -----------
NET CASH PROVIDED BY FINANCING ACTIVITIES   8,491,650     468,300             -
                                          -----------   ---------   -----------

NET INCREASE (DECREASE) IN CASH
 FOR THE PERIOD                                   892     (54,539)   (1,467,183)
  Cash, beginning of period                         -      55,431     2,167,699
                                          -----------   ---------   -----------
CASH, END OF PERIOD                               892         892       700,516
                                          ===========   =========   ===========
INCOME TAXES PAID                                   -           -             -
                                          ===========   =========   ===========
INTEREST PAID                                       -           -             -
                                          ===========   =========   ===========


             See condensed notes to the interim financial statements




                                       3



SECURITY DEVICES INTERNATIONAL, INC.
(A Development Stage Enterprise)
Interim Statement of Changes in Stockholders' Equity
Six months ended May 31, 2010 and for Period from Inception (March 1, 2005) to
November 30, 2009.
(Amounts expressed in US Dollars)
(Unaudited-Prepared by Management)


                                                                                         

                                     Number of       Common     Additional        Deficit
                                      Common         Shares      Paid-in     Accumulated During
                                      Shares         amount      Capital      Development Stage       Total
                                                       $            $                $                  $
                                     ----------      ------     ----------   ------------------       -----

Balance as of March 1, 2005                  -             -             -                -                 -
Issuance of Common shares
 for professional services           6,525,000         6,525        58,725                -            65,250
Issuance of common shares for cash     397,880           398        99,072                             99,470
  Net loss for the period                    -             -             -         (188,699)         (188,699)
                                   ------------  ------------  ------------     ------------      ------------
Balance as of November 30, 2005      6,922,880         6,923       157,797         (188,699)          (23,979)
                                   ------------  ------------  ------------     ------------      ------------
Issuance of common shares for cash     956,000           956        94,644                -            95,600

Issuance of common shares for cash     286,000           286        49,764                -            50,050
Issuance of common shares  to
 consultant for services                50,000            50         8,700                -             8,750
Issuance of common shares for cash   2,000,000         2,000       398,000                -           400,000
Exercise of stock options              950,000           950        94,050                -            95,000
Issuance of common shares for cash
 (net of agent commission)             200,000           200       179,785                -           179,985
Stock subscriptions received                                     1,165,500                -         1,165,500
Stock based compensation                     -             -     1,049,940                -         1,049,940
  Net loss for the year                      -             -             -       (1,660,799)       (1,660,799)
                                   ------------  ------------  ------------     ------------      ------------
Balance as of November 30, 2006     11,364,880        11,365     3,198,180       (1,849,498)        1,360,047

Issuance of common shares for stock
Subscriptions received in prior year 1,165,500         1,165        (1,165)               -                 -
Issuance of common shares for cash   1,170,670         1,171     1,169,499                          1,170,670
Issuance of common shares for cash
 and services                           50,000            50       154,950                            155,000
Issuance of common shares for cash
 (net of expenses)                   2,139,000         2,139     4,531,236                          4,533,375
Cancellation of stock               (1,560,000)       (1,560)      (14,040)                           (15,600)
Stock based compensation                                         2,446,433                          2,446,433
Issue of warrants                                                  357,094                            357,094
  Net loss for the year                      -             -             -       (4,827,937)       (4,827,937)
                                   ------------  ------------  ------------     ------------      ------------
Balance as of November 30, 2007     14,330,050        14,330    11,842,187       (6,677,435)        5,179,082

Exercise of stock options              117,000           117        11,583                             11,700
Stock based compensation                     -             -     1,231,056                -         1,231,056
Net loss for the year                        -             -             -       (4,401,786)       (4,401,786)
                                   ------------  ------------  ------------     ------------      ------------
Balance as of November 30, 2008     14,447,050        14,447    13,084,826      (11,079,221)        2,020,052

Issuance of common shares for cash     788,000           788       196,212                            197,000
Stock based compensation                     -             -       177,990                -           177,990
Compensation expense for warrants                                    4,223                              4,223
Net loss for the year                        -             -             -       (2,974,467)       (2,974,467)
                                   ------------  ------------  ------------     ------------      ------------
Balance as of November 30, 2009     15,235,050        15,235    13,463,251      (14,053,688)         (575,202)

Issuance of common shares for cash   1,510,000         1,510       355,990                            357,500
Stock subscriptions received                                        60,800                             60,800
Stock based compensation                                           106,819                            106,819
Net loss for the period                                                            (868,112)         (868,112)
                                   ------------  ------------  ------------     ------------      ------------

Balance as of May 31, 2010          16,745,050        16,745    13,986,860      (14,921,800)         (918,195)



               See condensed notes to the interim financial statements



                                       4



SECURITY DEVICES INTERNATIONAL, INC.
(A Development Stage Enterprise)
Condensed Notes to Interim Financial Statements
May 31, 2010
(Amounts expressed in US Dollars)
(Unaudited-Prepared by Management)

1.   BASIS OF PRESENTATION

     The  accompanying   unaudited  condensed  financial  statements  have  been
     prepared in accordance with the  instructions to Form 10-Q and therefore do
     not include all information and footnotes necessary for a fair presentation
     of financial  position,  results of operations and cash flows in conformity
     with U.S. generally accepted accounting  principles (GAAP);  however,  such
     information reflects all adjustments (consisting solely of normal recurring
     adjustments), which are, in the opinion of management, necessary for a fair
     statement of the results for the interim periods.

     The condensed  financial  statements should be read in conjunction with the
     financial   statements  and  Notes  thereto   together  with   management's
     discussion  and analysis of financial  condition  and results of operations
     contained in the  Company's  annual  report on Form 10-K for the year ended
     November 30, 2009. In the opinion of management, the accompanying condensed
     financial  statements  reflect all adjustments of a normal recurring nature
     considered  necessary to fairly state the financial position of the Company
     at May 31, 2010, the results of its operations for the six -and three-month
     periods ended May 31, 2010 and May 31, 2009, and its cash flows for the six
     -month  periods ended May 31, 2010 and May 31, 2009.  In addition,  some of
     the  Company's  statements  in this  quarterly  report  on Form 10-Q may be
     considered  forward-looking  and involve risks and uncertainties that could
     significantly  impact expected  results.  The results of operations for the
     six -month  period  ended May 31, 2010 are not  necessarily  indicative  of
     results to be expected for the full year.

     The  Company  was  incorporated  under the laws of the state of Delaware on
     March 1, 2005.

2.   NATURE OF OPERATIONS AND GOING CONCERN

     The Company has completed the development of a fully  operational 40MM long
     range  LEKTROX,  a unique line of wireless  electric  ammunition for use in
     military,  homeland  security,  law enforcement,  and professional and home
     security  scenarios and the Company is now planning for a production  line.
     LEKTROX has been  specially  designed for use with standard issue riot guns
     and M203  grenade  launchers.  This will allow  military,  law  enforcement
     agencies  etc. to quickly  deploy  LEKTROX  without  the need for  lengthy,
     complex training methods or significant  functional adjustments to vehicles
     or personal equipment. Simplicity of use is also a key benefit for the home
     security  market where most users have little or no  specialized  training.
     LEKTROX is a 3rd generation electric solution.  First generation  solutions
     were electric batons and hand-held



                                       5


SECURITY DEVICES INTERNATIONAL, INC.
(A Development Stage Enterprise)
Condensed Notes to Interim Financial Statements
May 31, 2010
(Amounts expressed in US Dollars)
(Unaudited-Prepared by Management)


2.   NATURE OF OPERATIONS-Cont'd

     stun guns which had a range of an arm's length.  2nd  generations  were the
     wired electric charge solutions.  3rd generations are the wireless electric
     bullets.

     The Company's financial  statements are presented on a going concern basis,
     which   contemplates   the  realization  of  assets  and   satisfaction  of
     liabilities in the normal course of business. The Company has no source for
     operating  revenue  and  expects  to  incur  expenses  before  establishing
     operating revenue. The Company has a need for additional working capital to
     fund its  operating  expenses and for the economic  production  of LEKTROX,
     which is currently being evaluated by the US Military. The Company's future
     success is dependent upon its continued ability to raise sufficient capital
     to fund  operating  expenses and the economic  production of LEKTROX.  This
     raises substantial doubt about the Company's ability to continue as a going
     concern. The financial statements do not include any adjustments that might
     result  from  this   uncertainty.   In  order  to  finance  the   continued
     development,  the Company is working towards raising of appropriate capital
     in the near future.  During the year ended  November 30, 2009,  the Company
     raised  $197,000  through issue of common shares and warrants.  The Company
     further  raised an  additional  $357,500  net  through  the issue of common
     shares during the quarter ended February 28, 2010 and an additional $60,800
     during the quarter ended May 31, 2010.  Subsequent to the quarter ended May
     31, 2010, the Company raised an additional $300,000

     The Company has  incurred a loss of $ 868,112  during the six month  period
     ended  May  31,  2010  primarily  due  to  its  research  and   development
     activities.  At May 31, 2010, the Company had an accumulated deficit during
     the development stage of $14,921,800 which includes a non- cash stock based
     compensation  expense of $5,012,238 and  compensation  expense for warrants
     for $361,317.

3.   RESEARCH AND PRODUCT DEVELOPMENT

     Research and Product  Development  costs,  including  acquired research and
     product  development  costs,  are  charged  against  income  in the  period
     incurred.



                                       6



SECURITY DEVICES INTERNATIONAL, INC.
(A Development Stage Enterprise)
Condensed Notes to Interim Financial Statements
May 31, 2010
(Amounts expressed in US Dollars)
(Unaudited-Prepared by Management)


4.   PLANT AND EQUIPMENT, NET

       Plant and equipment are recorded at cost less accumulated depreciation.
       Depreciation is provided commencing in the month following acquisition
       using the following annual rate and method:

                Computer equipment          30%   declining balance method
                Furniture and Fixtures      30%   declining balance method


                                  May 31, 2010            November 30, 2009
                                ----------------------    ----------------------
                                           Accumulated               Accumulated
                                Cost      Amortization    Cost      Amortization
                                 $             $           $             $
                                ----------------------    ----------------------

        Computer equipment     35,211         17,278     35,211         14,113
        Furniture and fixtures 15,310          7,807     15,310          6,484
                              --------       --------   --------       --------
                               50,521         25,085     50,521         20,597
                              --------       --------   --------       --------

        Net carrying amount           $25,436                  $29,924
                                      -------                  -------

5.   CAPITAL STOCK

        a) Authorized

            50,000,000 Common shares, $0.001 par value

          And

            5,000,000 Preferred shares, $0.001 par value

     The Company's Articles of Incorporation authorize its Board of Directors to
     issue up to 5,000,000  shares of preferred  stock.  The  provisions  in the
     Articles  of  Incorporation  relating  to the  preferred  stock  allow  the
     directors  to issue  preferred  stock  with  multiple  votes  per share and
     dividend  rights which would have  priority  over any  dividends  paid with
     respect to the holders of SDI's common stock.



                                       7



SECURITY DEVICES INTERNATIONAL, INC.
(A Development Stage Enterprise)
Condensed Notes to Interim Financial Statements
May 31, 2010
(Amounts expressed in US Dollars)
(Unaudited-Prepared by Management)


     b) Issued

           16,745,050 Common shares

        c)  Changes to Issued Share Capital

     Year ended November 30, 2009

     On August 19, 2009 the  Company  sold  788,000  units to a group of private
     investors.  Each  unit  consisted  of one  share of  common  stock  and one
     warrant.  Each  warrant  allows  the  holder to  purchase  one share of the
     Company's  common  stock at a price of $0.50 per share at any time prior to
     June 15,  2010.  The  shares  were sold at a price of $0.25  per unit.  The
     shares of common  stock are, and any shares  issuable  upon the exercise of
     warrants will be,  restricted  securities,  as that term is defined in Rule
     144 of the Securities and Exchange Commission.  The Company relied upon the
     exemption  provided  by  Section  4(2)  of the  Securities  Act of  1933 in
     connection

     Six month period ended May 31, 2010

     On January 4, 2010 the Company completed the placement for 1,510,000 common
     shares to private  investors.  The shares were sold at a price of $0.25 per
     common  share for a total  consideration  of  $377,500.  The  Company  paid
     $20,000  as  finder's  fees.  The  shares  of common  stock are  restricted
     securities,  as that  term is  defined  in Rule 144 of the  Securities  and
     Exchange  Commission.  The Company  relied upon the  exemption  provided by
     Section 4(2) of the Securities Act of 1933 in this connection.

     In April, 2010 the Company received  subscription for 250,000 common shares
     at a price of $0.20 per common share from a private investor.

     In May, 2010, the Company received $10,800 being the exercise of options to
     acquire  108,000  common  shares at an  exercise  price of $0.10 per common
     share.

6.   STOCK BASED COMPENSATION

     On December 4, 2009,  the Company  approved  the  reduction of the exercise
     price of 300,000  outstanding  options  which had earlier  been issued at a
     price of $0.50 to a new  option  price of $0.25 per  share,  with all other
     terms of the original grant remaining the



                                       8



SECURITY DEVICES INTERNATIONAL, INC.
(A Development Stage Enterprise)
Condensed Notes to Interim Financial Statements
May 31, 2010
(Amounts expressed in US Dollars)
(Unaudited-Prepared by Management)

6.   STOCK BASED COMPENSATION-Cont'd

     same.   The  Company   expensed  this   additional   non-cash  stock  based
     compensation  expense relating to this  modification  for $6,534.  The fair
     value  of each  option  used  for  the  purpose  of  estimating  the  stock
     compensation  is calculated  using the  Black-Scholes  option pricing model
     with the following weighted average assumptions:

          Risk free rate                                                2.61%
          Expected dividends                                               0%
          Forfeiture rate                                                  0%
          Volatility                                                  173.24%
          Exercise price                                               $0.25
          Increase in fair value due to reduction in
           exercise price of options                                   $0.02
          Market price of Company's common stock on date of
           reduction in exercise price                                 $0.25
          Stock-based compensation cost expensed                      $6,534

     On December 4, 2009,  the Company  approved the extension of the expiration
     of 2,900,000  outstanding  options from their  initial  expiry date ranging
     from November 2011 to April 2013 to a new expiration  date of June 30, 2014
     with all other terms of the original grant  remaining the same. The Company
     expensed this additional non-cash stock based compensation expense relating
     to this  modification  for $63,282.  The fair value of each option used for
     the purpose of estimating the stock  compensation  is calculated  using the
     Black-Scholes  option  pricing  model with the following  weighted  average
     assumptions:

            Risk free rate                                            2.61%
            Expected dividends                                           0%
            Forfeiture rate                                              0%
            Volatility                                              173.24%
            Stock-based compensation cost expensed                  $63,282

     On January 4, 2010, the board of directors granted options to a director to
     acquire 100,000 common shares at an exercise price of $0.25 per share.  All
     of these options vested  immediately and have an expiry of five years.  The
     Company expensed stock based  compensation cost of $23,677.  The fair value
     of each option used for the purpose of estimating the stock compensation is
     calculated using the Black-Scholes  option pricing model with the following
     weighted average assumptions:



                                       9



SECURITY DEVICES INTERNATIONAL, INC.
(A Development Stage Enterprise)
Condensed Notes to Interim Financial Statements
May 31, 2010
(Amounts expressed in US Dollars)
(Unaudited-Prepared by Management)

6.   STOCK BASED COMPENSATION-Cont'd

            Risk free rate                                            2.61%
            Expected dividends                                           0%
            Forfeiture rate                                              0%
            Volatility                                              170.69%
            Market price of Company's common stock on date
               of grant of options                                   $0.25
            Stock-based compensation cost expensed                 $23,677

     On May 20, 2010,  the Company  approved the extension of the  expiration of
     50,000 outstanding options from their initial expiry date from May 21, 2010
     to a new  expiration  date of June 30, 2014 and a reduction in the exercise
     price  of the  options  from  $0.50 to $0.25  with all  other  terms of the
     original  grant  remaining the same. The Company  expensed this  additional
     non-cash stock based compensation expense relating to this modification for
     $13,326.  The fair value of each option used for the purpose of  estimating
     the stock compensation is calculated using the Black-Scholes option pricing
     model with the following weighted average assumptions:

            Risk free rate                                            2.61%
            Expected dividends                                           0%
            Forfeiture rate                                              0%
            Volatility                                              166.16%
            Stock-based compensation cost expensed                  $13,326

     As of May 31,  2010  there  was $Nil of  unrecognized  expense  related  to
     non-vested stock-based compensation arrangements granted.

7.   RELATED PARTY TRANSACTIONS

     a)   A Company  Director  has charged the Company a total  amount of $1,500
          for  providing  office space during the six month period ended May 31,
          2010.

     b)   The  directors  were  compensated  from  January  1, 2010 as per their
          consulting  agreements  with the  Company.  During the  quarter  ended
          February 28, 2010, one director was paid $21,500 as consulting fee and
          $3,000 as  automobile  allowance;  one  director  was paid  $17,750 as
          consulting  fee and $2,000 as automobile  allowance;  one director was
          paid $16,500 as  consulting  fee and $2,000 as  automobile  allowance.
          During the quarter ended May 31, 2010,  the Company  expensed  $58,500
          being remuneration for directors, including a director who


                                       10



SECURITY DEVICES INTERNATIONAL, INC.
(A Development Stage Enterprise)
Condensed Notes to Interim Financial Statements
May 31, 2010
(Amounts expressed in US Dollars)
(Unaudited-Prepared by Management)

7.   RELATED PARTY TRANSACTIONS-Cont'd

     resigned May 30, 2010. As of May 31, 2010, $32,250 was owed to the existing
     directors.

     c)   On December 4, 2009 the board of directors  approved  extension of the
          expiration of outstanding  options from their initial expiry date to a
          new  expiration  date of June 30,  2014  with all  other  terms of the
          original grant remaining the same.

          1.   Extension  of the  expiration  of 1,150,000  outstanding  options
               already issued to three  directors from their initial expiry date
               to a new expiration date of June 30, 2014

          2.   Extension  of  the  expiration  of  300,000  outstanding  options
               already  issued to an officer from their initial expiry date to a
               new expiration date of June 30, 2014.

     Stock based  compensation cost relating to the extension in the expiry date
     of the  outstanding  options issued to three  directors and an officer,  as
     above, amounting to $30,213 has been expensed to general and administration
     expense.

     d)   On  January  4,  2010,  the board of  directors  granted  options to a
          director to acquire  100,000  common  shares at an  exercise  price of
          $0.25 per share.  All of these options vested  immediately and have an
          expiry of five years.  The Company  expensed stock based  compensation
          cost of $23,677.

8.   COMMITMENTS

       a)  On January 1, 2010, the Company's directors renewed consulting
           agreements with three of the Company's officers on the following
           terms:

                                         Monthly
                                    Consulting Fees for           Expiration of
                                     February through      Car     Consulting
         Name                         December 2010     Allowance   Agreement
         ----                       ------------------- --------- -------------

        Sheldon Kales (resigned
          May 30, 2010)                   $6,500             --     12-31-2010
        Boaz Dor                          $6,500             --     12-31-2010
        Gregory Sullivan                  $6,500             --     12-31-2010



                                       11



SECURITY DEVICES INTERNATIONAL, INC.
(A Development Stage Enterprise)
Condensed Notes to Interim Financial Statements
May 31, 2010
(Amounts expressed in US Dollars)
(Unaudited-Prepared by Management)

8.   COMMITMENTS-Cont'd

     b)   On  November  30,  2009,  the Company  entered  into a  Memorandum  of
          Understanding  ("MOU")  with  its  research  and  development  service
          contractor ("the contractor"). This MOU covers various alternatives to
          the Company to settle the liability to the contractor in the amount of
          $658,932 as at November 30, 2009. Should the Company become insolvent,
          or  is  unable  to  continue  operations,  or is  unable  to  pay  the
          contractor  pursuant to the MOU, then it will grant the  contractor an
          exclusive,   irrevocable,   worldwide,   assignable,  sub  licensable,
          perpetual  license to  further  develop  and to market  the  Company's
          electric  bullet and BIP  technology.  The  Company  will  negotiate a
          royalty in the event of granting such rights to the contractor.

9.   ADVANCE FROM A NON RELATED PARTY

     The Company received an interest-free advance of $50,000 which is unsecured
     and payable on demand.  This advance was repaid in full  subsequent  to the
     period ended May 31, 2010. (See note 10)

10.  SUBSEQUENT EVENTS

     On June 1, 2010 the  Company  sold  1,000,000  shares of common  stock to a
     private  investor at a price of $0.20 per share. The shares of common stock
     are  restricted  securities,  as that  term is  defined  in Rule 144 of the
     Securities and Exchange  Commission.  The Company relied upon the exemption
     provided by Section 4(2) of the Securities  Act of 1933 in connection  with
     the sale of these securities.

     In June 2010, the Company  received  subscription for 500,000 common shares
     at a price of $0.20 per share for a total  consideration of $100,000 from a
     private investor.

     In June 2010,  the  Company  repaid the loan of $50,000  from a non related
     party.

     In June 2010,  the board of  directors  granted  options  to a director  to
     acquire  350,000  common  shares,  two  directors to acquire  50,000 common
     shares each and to a consultant to acquire 35,000 common shares.  All these
     485,000  options  were issued at an  exercise  price of $0.20 per share and
     vest  immediately   with  an  expiry  term  of  five  years.   Stock  based
     compensation  cost of $119,368  will be  expensed  in the third  quarter of
     2010.



                                       12




Management's  Discussion  and  Analysis of  Financial  Condition  and Results of
Operation

      SDI was incorporated on March 1, 2005 and for the period from inception to
May 31, 2010 has not generated any revenue.

      During the three and six months ended May 31, 2010:

     o    Research  and  Product  Development  expenses  were  lower  since  the
          development of the Company's products was nearing completion.

     o    General and  administrative  expenses were  comparable  with the prior
          periods.

     During the period from inception (March 1, 2005) through May 31, 2010 SDI's
operations used $8,440,237 in cash. During this period SDI:

     o    purchased $50,521 of equipment;
     o    raised $8,324,150 (net) from the sale of shares of its common stock;
     o    raised  $117,500  from two of its officers and  directors and a former
          officer  and  director  upon  the  exercise  of  options  to  purchase
          1,175,000 shares of common stock; and
     o    borrowed $50,000 from an unrelated third party.

      In August 2009 SDI sold, in a private offering, 788,000 Units at a price
of $0.25 per Unit. Each Unit consisted of one share of SDI's common stock and
one warrant. Each warrant allows the Holder to purchase one additional share of
SDI's common stock at a price of $0.50 per share at any time on or before June
15, 2010.

      On January 4, 2010 SDI sold 1,510,000 common shares to private investors.
The shares were sold at a price of $0.25 per common share for a total
consideration of $377,500.

      In April, 2010 SDI received a subscription from a private investor for the
sale of 250,000 common shares at a price of $0.20 per share.

      In May, 2010, SDI received $10,800 from the exercise of options to acquire
108,000 common shares at a price of $0.10 per share.

      On May 30, 2010 Sheldon Kales resigned as a director of SDI and as SDI's
Principal Executive Officer.

      On May 30, 2010 Gregory Sullivan was appointed as SDI's President and
Principal Executive Officer.

      On June 8, 2010 Harry Walters and Patrick Bryan were appointed directors
of SDI.

      As of May 31, 2010 SDI had developed a fully operational Long Range
LEKTROX (40MM) and was planning a production line.


                                       13


      On June 1, 2010 SDI sold 1,000,000 shares of common stock to a private
investor at a price of $0.20 per share.

      SDI anticipates that its capital requirements for the twelve-month period
ending May 31, 2011 will be:

      Development and Preproduction costs         $1,500,000
      General and Administrative Expenses            375,000
                                                ------------
           Total                                  $1,875,000
                                                ============

      Other than the foregoing, SDI did not have any material future contractual
obligations or off balance sheet arrangements as of May 31, 2010.

      SDI does not have any commitments or arrangements from any persons to
provide SDI with any additional capital it may need. Without additional capital
SDI will not be able to fund its anticipated capital requirements outlined
above.



                                       14



                                     PART II

Item 2. Unregistered Sales of Equity Securities and Use of Proceeds

      In January 2010 SDI sold, in a private offering, 1,510,000 shares of its
common stock at a price of $0.25 per share. SDI paid $20,000 as finder's fees in
connection with the sale of these shares.

      In April, 2010 SDI received a subscription from a private investor for the
sale of 250,000 common shares at a price of $0.20 per share.

      In May, 2010, SDI received $10,800 from the exercise of options to acquire
108,000 common shares at a price of $0.10 per share.

      SDI relied upon the exemption provided by Section 4(2) of the Securities
Act of 1933 in connection with the sale of these securities. The investor which
acquired the shares was sophisticated and was provided with full information
regarding SDI. There was no general solicitation in connection with the offer or
sale of the securities. The investor which acquired these securities acquired
them for its own account. The certificate representing these securities bears a
restricted legend providing that they cannot be sold except pursuant to an
effective registration statement or an exemption from registration. No
commission or other form of remuneration was given to any person in connection
with the sale of these securities.

Item 4. Controls and Procedures.

      (a) SDI maintains a system of controls and procedures designed to ensure
that information required to be disclosed in reports filed or submitted under
the Securities Exchange Act of 1934, as amended ("1934 Act"), is recorded,
processed, summarized and reported, within time periods specified in the SEC's
rules and forms and to ensure that information required to be disclosed by SDI
in the reports that it files or submits under the 1934 Act, is accumulated and
communicated to SDI's management, including its Principal Executive Officer and
Principal Financial Officer, as appropriate to allow timely decisions regarding
required disclosure. As of May 31, 2010, SDI's Principal Executive Officer and
Principal Financial Officer evaluated the effectiveness of the design and
operation of SDI's disclosure controls and procedures. Based on that evaluation,
SDI's Principal Executive Officer and Principal Financial Officer concluded that
SDI's disclosure controls and procedures were effective.

      (b) Changes in Internal Controls. There were no changes in SDI's internal
control over financial reporting during the quarter ended May 31, 2010, that
materially affected, or are reasonably likely to materially affect, its internal
control over financial reporting.



                                       15



Item 6.  Exhibits

Exhibits

  31.1      Certification  pursuant to Section 302 of the  Sarbanes-Oxley Act of
            2002 for Gregory Sullivan.

  31.2      Certification  pursuant to Section 302 of the  Sarbanes-Oxley Act of
            2002 for Rakesh Malhotra.

  32        Certification  pursuant to Section 906 of the  Sarbanes-Oxley Act of
            2002 for Gregory Sullivan and Rakesh Malhotra.



                                       16


                                   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 authorized.


                                      SECURITY DEVICES INTERNATIONAL, INC.

Date:  July 14, 2010
                                      By: /s/ Gregory Sullivan
                                          -----------------------------------
                                          Gregory Sullivan, President and
                                          Principal Executive Officer



Date:  July 14, 2010
                                      By: /s/ Rakesh Malhotra
                                          -----------------------------------
                                          Rakesh Malhotra, Principal Financial
                                          and Accounting Officer












                                       17