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 August 31, 2009

[  ]  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 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: 15,235,050 shares outstanding
as of September 30, 2009.






                      SECURITY DEVICES INTERNATIONAL, INC.
                        (A Development Stage Enterprise)
                          INTERIM FINANCIAL STATEMENTS
                                 AUGUST 31, 2009
                        (Amounts expressed in US Dollars)
                                   (Unaudited)






                      SECURITY DEVICES INTERNATIONAL, INC.
                        (A Development Stage Enterprise)
                          INTERIM FINANCIAL STATEMENTS
                                 AUGUST 31, 2009
                        (Amounts expressed in US Dollars)
                                   (Unaudited)


                                TABLE OF CONTENTS
                                                                         Page No

Interim Balance Sheets as at August 31, 2009 and November 30, 2008           1

Interim Statement of Operations for the nine months and three
months ended August 31, 2009 and August 31, 2008 and the period
from Inception (March 1, 2005) to August 31, 2009                            2

Interim Statement of Cash Flows for the nine months ended
August 31, 2009 and August 31, 2008                                          3

Interim Statements of changes in Stockholders' Equity (Deficiency)
for the nine months ended August 31, 2009 and for the period from
inception (March 1, 2005) to November 30, 2008                               4

Condensed Notes to Interim Financial Statements                           5-11








SECURITY DEVICES INTERNATIONAL, INC.
(A Development Stage Enterprise)
Interim Balance Sheets
As at August 31, 2009 and November 30, 2008
(Amounts expressed in US Dollars)
(Unaudited-Prepared by Management)

                                                         Aug 31,       Nov 30,
                                                          2009          2008
                                                       (unaudited)   (audited)
                                     ASSETS                 $             $

CURRENT
   Cash and cash equivalents                             321,056     2,167,699
   Prepaid expenses and other                             30,880        45,984
                                                     ------------  ------------

Total Current Assets                                     351,936     2,213,683
Plant and Equipment, net (Note 4)                         31,901        25,450
                                                     ------------  ------------

TOTAL ASSETS                                             383,837     2,239,133
                                                     ------------  ------------
                                   LIABILITIES

CURRENT LIABILITIES
   Accounts payable and accrued liabilities              437,976       219,081
                                                     ------------  ------------

Total Current Liabilities                                437,976       219,081
                                                     ------------  ------------
Going Concern (note 2)
Related Party Transactions (note 7)
Commitments (note 8)

                        STOCKHOLDERS' EQUITY (DEFICIENCY)


Capital Stock (Note 5)                                    15,235        14,447
Additional Paid-In Capital                            13,463,251    13,084,826
Deficit Accumulated During the Development Stage     (13,532,625)  (11,079,221)
                                                     ------------  ------------

Total Stockholders' Equity (Deficiency)                  (54,139)    2,020,052
                                                     ------------  ------------

TOTAL LIABILITIES AND STOCKHOLDERS'
 EQUITY (DEFICIENCY)                                     383,837     2,239,133
                                                     ------------  ------------

            See condensed notes to the interim financial statements.



                                       1


SECURITY DEVICES INTERNATIONAL, INC.
(A Development Stage Enterprise)
Statements of Operations
For the Nine Months and Three Months Ended August 31, 2009 and August 31, 2008
and the Period from inception (March 1, 2005) to August 31, 2009 (Amounts
expressed in US Dollars) (Unaudited- Prepared by Management)


                                                                        

                                            For the      For the       For the       For the
                                           nine months  nine months  three months  three months
                              Cumulative     ended        ended         ended         ended
                                 Since       Aug 31,      Aug 31,       Aug 31,       Aug 31,
                               inception      2009         2008          2009          2008
                                    $           $           $              $             $
                              ----------   -----------  -----------  ------------  ------------
OPERATING EXPENSES:

Research and Product
Development Cost               6,243,164    1,728,121    2,073,935      575,445       782,861
Amortization                      17,701        6,452        6,228        2,310         2,285
General and administration
  (note 6)                     7,539,595      721,885    1,649,457      274,114       127,767
                             ------------ ------------ ------------ ------------  ------------

   TOTAL OPERATING EXPENSES   13,800,460    2,456,458    3,729,620      851,869       912,913
                             ------------ ------------ ------------ ------------  ------------

LOSS FROM OPERATIONS         (13,800,460)  (2,456,458)  (3,729,620)    (851,869)     (912,913)

   Other Income-Interest         267,835        3,054       59,671            -        17,469
                             ------------ ------------ ------------ ------------  ------------

LOSS BEFORE INCOME TAXES     (13,532,625)  (2,453,404)  (3,669,949)    (851,869)     (895,444)

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

NET LOSS                     (13,532,625)  (2,453,404)  (3,669,949)    (851,869)     (895,444)
                             ------------ ------------ ------------ ------------  ------------

Loss per share - basic
  and diluted                                   (0.17)       (0.26)       (0.06)        (0.06)
                             ------------ ------------ ------------ ------------  ------------

Weighted average common
  shares outstanding                       14,484,437   14,330,050   14,558,398    14,330,050
                             ------------ ------------ ------------ ------------  ------------



            See condensed notes to the interim financial statements.



                                       2



SECURITY DEVICES INTERNATIONAL, INC.
(A Development Stage Enterprise)
Interim Statement of Cash Flows
For the Nine Months Ended August 31, 2009 and August 31, 2008 and the Period
from Inception (March 1, 2005) to August 31, 2009 (Amounts expressed in US
Dollars) (Unaudited-Prepared by Management)


                                                                                  

                                                                           For the       For the
                                                        Cumulative       nine months    nine months
                                                      since inception       ended         ended
                                                      (March 1, 2005)   Aug 31, 2009   Aug 31, 2008
                                                             $                 $              $


CASH FLOWS FROM OPERATING ACTIVITIES
 Net loss for the period                                (13,532,625)      (2,453,404)    (3,669,949)
   Items not requiring an outlay of cash:
    Issue of shares for professional services               154,000                -              -
    Stock based compensation (included in
     general and administration expenses)                 4,905,419          177,990      1,231,056
    Compensation expense for warrants
    (Included in general and administration expenses)       361,317            4,223              -
    Loss on cancellation of common stock                     34,400                -              -
    Amortization                                             17,701            6,452          6,228
    Changes in non-cash working capital:
    Prepaid expenses and other                              (30,880)          15,104         12,062
    Accounts payable and accrued liabilities                437,976          218,895        118,277
                                                       -------------    -------------  -------------

NET CASH USED IN OPERATING ACTIVITIES                    (7,652,692)      (2,030,740)    (2,302,326)
                                                       -------------    -------------  -------------
CASH FLOWS FROM INVESTING ACTIVITIES
  Acquisition of Plant and Equipment                        (49,602)         (12,903)        (8,363)
                                                       -------------    -------------  -------------

NET CASH USED IN INVESTING ACTIVITIES                       (49,602)         (12,903)        (8,363)
                                                       -------------    -------------  -------------
CASH FLOWS FROM FINANCING ACTIVITIES
  Net proceeds from issuance of common shares             7,966,650          197,000              -
  Cancellation of common stock                              (50,000)               -              -
  Exercise of stock options                                 106,700                -              -
                                                       -------------    -------------  -------------

NET CASH PROVIDED BY FINANCING ACTIVITIES                 8,023,350          197,000              -
                                                       -------------    -------------  -------------

NET INCREASE (DECREASE) IN CASH AND CASH
   EQUIVALENTS FOR THE PERIOD                               321,056       (1,846,643)    (2,310,689)
  Cash and cash equivalents, beginning of period                  -        2,167,699      5,293,176
                                                       -------------    -------------  -------------

CASH AND CASH EQUIVALENTS, END OF PERIOD                    321,056          321,056      2,982,487
                                                       =============    =============  =============

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
From Inception (March 1, 2005) to August 31, 2009.
(Amounts expressed in US Dollars)
(Unaudited-Prepared by Management)


                                                                                     

                                         Number of       Common    Additional
                                          Common         Shares      Paid-in      Deficit
                                          Shares         amount      Capital     accumulated       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 (audited)            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 (audited)            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 ended
  November 30, 2007                              -             -             -    (4,827,937)   (4,827,937)
                                       ------------  ------------  ------------  ------------  ------------
Balance as of
 November 30, 2007(audited)             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 period                          -             -             -    (4,401,786)   (4,401,786)
                                       ------------  ------------  ------------  ------------  ------------
Balance as of
 November 30, 2008(audited)             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 period                          -             -             -    (2,453,404)   (2,453,404)
                                       ------------  ------------  ------------  ------------  ------------
Balance as of
 August 31, 2009 (unaudited)            15,235,050        15,235    13,463,251   (13,532,625)      (54,139)
                                       ------------  ------------  ------------  ------------  ------------


            See condensed notes to the interim financial statements.



                                       4


SECURITY DEVICES INTERNATIONAL, INC.
(A Development Stage Enterprise)
Condensed Notes to Interim Financial Statements
August 31, 2009
(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, 2008. 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 August 31, 2009 and November 30, 2008, the
        results of its operations for the nine- and three-month periods ended
        August 31, 2009 and August 31, 2008, and its cash flows for the
        nine-month periods ended August 31, 2009 and August 31, 2008. 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 nine-month period ended August 31, 2009
        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 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.

                                       5


SECURITY DEVICES INTERNATIONAL, INC.
(A Development Stage Enterprise)
Condensed Notes to Interim Financial Statements
August 31, 2009
 (Amounts expressed in US Dollars)
(Unaudited-Prepared by Management)

     2. NATURE OF OPERATIONS AND GOING CONCERN-Cont'd

        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 to raising of appropriate capital in the near future.  During
        the three month period ended August 31, 2009, the Company was able to
        raise $197,000 through issue of common shares and warrants.

        The Company has incurred a loss of $ 2,453,404 during the nine month
        period ended August 31, 2009 primarily due to its research and
        development activities. At August 31, 2009, the Company had an
        accumulated deficit during the development stage of $13,532,625 which
        includes a non- cash stock based compensation expense of $4,905,419 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
        acquired or incurred.

      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


                                       6


SECURITY DEVICES INTERNATIONAL, INC.
(A Development Stage Enterprise)
Condensed Notes to Interim Financial Statements
August 31, 2009
 (Amounts expressed in US Dollars)
(Unaudited-Prepared by Management)

           4. PLANT AND EQUIPMENT, NET-Cont'd

                                     Aug 31, 2009             Nov 30, 2008
                                  ---------------------   ---------------------
                                            Accumulated             Accumulated
                                  Cost     Amortization   Cost     Amortization
                                   $             $         $             $
                                  ---------------------------------------------

        Computer equipment       35,212       12,081     22,958        8,102
        Furniture and fixtures   14,391        5,621     13,741        3,147
                                -------      -------    -------      -------
                                 49,603       17,702     36,699       11,249
                                -------      -------    -------      -------

        Net carrying amount           $31,901                  $25,450
                                      -------                  -------

     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.

        b) Issued

           15,235,050 Common shares

        c)  Changes to Issued Share Capital

         Year ended November 30, 2008

        The Company received $11,700 and issued 117,000 common shares from the
        exercise of stock options by a director of the Company.


                                       7


SECURITY DEVICES INTERNATIONAL, INC.
(A Development Stage Enterprise)
Condensed Notes to Interim Financial Statements
August 31, 2009
 (Amounts expressed in US Dollars)
(Unaudited-Prepared by Management)

     5. CAPITAL STOCK-Cont'd

        Nine month period ended August 31, 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

     6. STOCK BASED COMPENSATION

        Per SEC Staff Accounting Bulletin 107, Topic 14.F, "Classification of
        Compensation Expense Associated with Share-Based Payment Arrangements"
        stock based compensation expense is being presented in the same lines as
        cash compensation paid.

        On December 17, 2008, the Company approved the reduction of the exercise
        price of 2,940,000 outstanding options which had earlier been issued at
        prices ranging from $1.00 to $3.60 to a new option price of $0.50 per
        share, 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 $114,688. This reduction in
        exercise price relates to a total of 1,150,000 options in total issued
        to the Company's three directors; 300,000 options in total issued to the
        Company's officer and the balance total of 1,490,000 unexercised options
        issued in the past to various consultants.

        On June 17, 2009, the Company approved the reduction of the exercise
        price of 2,700,000 outstanding options which had on December 17, 2008
        been reduced to an option price of $0.50 per share, to a new option
        price of $0.25 per share, 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 $63,302.
        This reduction in exercise price relates to a total of 1,150,000 options
        in total issued to the Company's three directors; 300,000 options in
        total issued to the Company's officer and the balance total of 1,250,000
        unexercised options issued in the past to various consultants.

        For the nine month period ended August 31, 2009 the Company has
        recognized in its financial statements additional stock-based
        compensation costs as per the following details. 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:


                                       8


SECURITY DEVICES INTERNATIONAL, INC.
(A Development Stage Enterprise)
Condensed Notes to Interim Financial Statements
August 31, 2009
 (Amounts expressed in US Dollars)
(Unaudited-Prepared by Management)

        6. STOCK BASED COMPENSATION-Cont'd

        December 17, 2008:
        ------------------

        Risk free rate                                                    2.95%
        Expected dividends                                                   0%
        Forfeiture rate                                                      0%
        Exercise price                                                   $0.50
        Increase in fair value due to reduction in exercise
         price of options                                          $0.03-$0.09
        Market price of Company's common stock on date of
         reduction in exercise price                                     $0.32
        Stock-based compensation cost expensed                        $114,688
        Unexpended stock-based compensation deferred over to
         next period                                                      $Nil

        June 17, 2009:
        -------------

        Risk free rate                                                    2.95%
        Expected dividends                                                   0%
        Forfeiture rate                                                      0%
        Exercise price                                                   $0.25
        Increase in fair value due to reduction in exercise
         price of options                                          $0.02-$0.03
        Market price of Company's common stock on date of
         reduction in exercise price                                     $0.25
        Stock-based compensation cost expensed                         $63,302
        Unexpended stock-based compensation deferred over to
          next period                                                     $Nil

        As of August 31, 2009 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 $4,500
          for  providing  office space during the nine month period ended August
          31, 2009.

     b)   The  directors  were  compensated  from  January  1, 2009 as per their
          consulting  agreements with the Company. One director was paid $80,000
          as consulting  fee and $12,000 as automobile  allowance;  one director
          was paid $50,000 as consulting fee and $8,000 as automobile allowance;
          one  director  was  paid  $25,000  as  consulting  fee and  $8,000  as
          automobile allowance.

     c)   On December 17, 2008 the board of directors  approved the reduction in
          the exercise  price of the following  options under its  Non-Qualified
          Stock Option Plan:


                                       9


SECURITY DEVICES INTERNATIONAL, INC.
(A Development Stage Enterprise)
Condensed Notes to Interim Financial Statements
August 31, 2009
 (Amounts expressed in US Dollars)
(Unaudited-Prepared by Management)

       7. RELATED PARTY TRANSACTIONS-Cont'd

          1.   Reduction in the exercise price of the options  already issued to
               three directors to acquire  1,150,000 common shares from exercise
               price of $1.20 to a new exercise price of $0.50 per share.

          2.   Reduction in the exercise price of the options  already issued to
               an officer to acquire  125,000  common shares from exercise price
               of $1.25 to a new exercise price of $0.50 per share and reduction
               in the exercise price to acquire 175,000 common shares from $1.20
               to a new exercise price of $0.50 per share.

        Stock based compensation cost relating to the reduction in the exercise
        price of the options issued to directors and officers, as above,
        amounting to $46,660 has been expensed to general and administration
        expense.

     d)   On June 17, 2009 the board of directors  approved the reduction in the
          exercise price of the following options under its Non-Qualified  Stock
          Option Plan:

          1.   Reduction in the exercise price of the options  already issued to
               three directors to acquire  1,150,000  common shares from reduced
               exercise  price  of $0.50 to a new  exercise  price of $0.25  per
               share.

          2.   Reduction in the exercise price of the options  already issued to
               an officer to acquire 125,000 common shares from reduced exercise
               price of $0.50 to a new  exercise  price of $0.25  per  share and
               further reduction in the exercise price to acquire 175,000 common
               shares from $0.50 to a new exercise price of $0.25 per share.

        Stock based compensation cost relating to the reduction in the exercise
        price of the options issued to directors and officers, as above,
        amounting to $34,322 has been expensed to general and administration
        expense.

     e)   On June 17, 2009,  the Company  further  approved the reduction of the
          exercise price of 317,000 outstanding  warrants which had earlier been
          issued to directors  for services at $0.50 per share to a new exercise
          price of $0.25 per share,  with all other terms of the original  issue
          remaining  the same.  The Company  expensed this  additional  non-cash
          compensation expense relating to this modification for $ 4,223.


                                       10



SECURITY DEVICES INTERNATIONAL, INC.
(A Development Stage Enterprise)
Condensed Notes to Interim Financial Statements
August 31, 2009
 (Amounts expressed in US Dollars)
(Unaudited-Prepared by Management)

     8. COMMITMENTS

        On February 4, 2009 the Company's directors approved consulting
        agreements with three of the Company's officers. The consulting
        agreements, which are effective retroactive to January 1, 2009, provide
        that the officers will consult with the Company in the areas of
        corporate operations and product development. The terms of the
        consulting agreements are shown below. The consulting agreements
        terminate on December 31, 2009.

                                                            Monthly
                                     Monthly               Automobile
        Name of Officer           Consulting Fee           Allowance
        ---------------           --------------          ----------

        Sheldon Kales                $10,000                $1,500
        Boaz Dor                     $ 6,250                $1,000
        Greg Sullivan                $ 3,125                $1,000



                                       11


Item 2.  Management's Discussion and Analysis of Financial Condition and Results
         of Operation

     Securities  Devices  International,  Inc. was incorporated on March 1, 2005
and for the period from  inception to August 31, 2009 has not yet  generated any
revenue.  SDI is a defense  technology  company which is developing  LEKTROX,  a
unique  line of  wireless  electric  ammunition  for use in  military,  homeland
security, law enforcement, and professional and home security situations.

     During the year ended  November 30, 2008,  and the nine months ended August
31,  2009,  substantially  all  of  SDI's  cash  expenses  were  related  to the
development of its LEKTROX technology.

     During the nine months ended August31, 2009:

     o    General  and  administrative  expenses  decreased  primarily  due to a
          decline  in  stock  based  compensation.  General  and  administrative
          expenses  included charges of $177,990,  which did not require the use
          of cash,  associated  with  lowering  the  exercise  price of  certain
          options granted to SDI's officers, directors and consultants.

     o    Research and Product  Development  expenses  were lower by $345,814 as
          compared  to  the  same  period   ended  August  31,  2008  since  the
          development of the Company's products was nearing completion.

     During the period from  inception  (March 1, 2005) through  August 31, 2009
     SDI's operations used $(7,652,692) in cash. During this period SDI:

     o    purchased $49,602 of equipment;

     o    raised $7,966,650 from the sale of shares of its common stock; and

     o    raised  $106,700  from three of its  officers and  directors  upon the
          exercise of options to purchase 1,067,000 shares of common stock.

     As of August 31, 2009 SDI had:

            Developed a fully operational Long Range LEKTROX (40MM) and was
            planning a production line.

     SDI anticipates that its capital  requirements for the twelve-month  period
ending August 31, 2010 will be:


      Development and Preproduction costs         $  900,000
      General and Administrative Expenses            350,000
                                                ------------
           Total                                $  1,250,000
                                                ============


                                       12


     SDI  expects  that  it will  need  to  raise  approximately  $1,000,000  in
additional capital prior to December 31, 2009.

     Other than the foregoing,  SDI did not have any material future contractual
obligations or off balance sheet arrangements as of August 31, 2009.

     SDI does not have any  commitments  or  arrangements  from any  persons  to
provide SDI with any additional capital it may need.

Item 4 and 4T.  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 August 31, 2009, 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,
the 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 August 31, 2009, that
materially affected, or are reasonably likely to materially affect, its internal
control over financial reporting.

                                     PART II
Item 6.  Exhibits

Exhibits

  31.1   Certification pursuant to Section 302 of the Sarbanes-Oxley Act of 2002
         for Sheldon Kales.

  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 Sheldon Kales and Rakesh Malhotra.




                                   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:  October 14, 2009
                                     By: /s/ Sheldon Kales
                                         -----------------------------------
                                         Sheldon Kales, President and Principal
                                         Executive Officer



Date:  October 14, 2009
                                     By: /s/ Rakesh Malhotra
                                         -----------------------------------
                                         Rakesh Malhotra, Principal Financial
                                         and Accounting Officer