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

                                    FORM 8-K


                                 CURRENT REPORT

                     Pursuant to Section 13 or 15(d) of the
                         Securities Exchange Act of 1934

         Date of Report (date of earliest event reported): May 30, 2010

                       SECURITY DEVICES INTERNATIONAL INC.
                       -----------------------------------
             (Exact name of Registrant as specified in its charter)


     Delaware                             None                   Applied For
- --------------------             ---------------------      --------------------
(State or other jurisdiction     (Commission File No.)         (IRS Employer
of incorporation)                                            Identification No.)

          2171 Avenue Road, Suite 103, Toronto, Ontario Canada M5M 4B4
                 ----------------------------------------------
          (Address of principal executive offices, including Zip Code)

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

                                       N/A
             -----------------------------------------------------
          (Former name or former address if changed since last report)

Check appropriate box below if the Form 8-K filing is intended to simultaneously
satisfy the filing obligation of the registrant under any of the following
provisions (see General Instruction A.2. below)

[ ] Written communications pursuant to Rule 425 under the Securities Act (17 CFR
    230.425)

[ ] Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR
    240.14a-12)

[ ] Pre-commencement communications pursuant to Rule 14d-2(b) under the
    Exchange Act (17 CFR 240.14d-2(b))

[ ] Pre-commencement communications pursuant to Rule 13e-14(c) under the
    Exchange Act (17 CFR 240.13e-4(c))





Item 5.02  Departure of Directors or Principal Officers, Election of Directors,
           Appointment of Principal Officers.

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

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

     Mr.  Sullivan  has been a director of the Company  since its  inception  in
2005.  During this time he has been actively engaged in both the operational and
financial dealings of Security Devices International. During a 20 year career in
law enforcement,  which followed a four year stint in the Military, Mr. Sullivan
has trained with federal,  state and municipal law  enforcement  agencies in the
United States,  Canada and the Caribbean and has gained extensive  experience in
the use of  lethal  and  non-lethal  weapons.  Mr.  Sullivan  has  also  trained
personnel  employed by both public and private  agencies in the use of force and
firearms.



                                   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 hereunto duly authorized.


Date:   June 7, 2010                SECURITY DEVICES INTERNATIONAL, INC.


                                    By:  /s/ Gregory Sullivan
                                        -------------------------------------
                                        Gregory Sullivan, President