<DOCUMENT>
<TYPE>EX-32.1
<SEQUENCE>4
<FILENAME>ex32-1.txt
<DESCRIPTION>EXHIBIT 32.1
<TEXT>
<PAGE>

EXHIBIT 32.1

                            CERTIFICATION PURSUANT TO
                             18 U.S.C. SECTION 1350,
                             AS ADOPTED PURSUANT TO
                  SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

         In  connection  with  the  amended  Quarterly  Report  of  Applied  DNA
Sciences,  Inc.  (the  "Company") on Form 10-QSB/A for the period ended June 30,
2006, as filed with the  Securities  and Exchange  Commission on the date hereof
(the  "Report"),  I, James  Hayward,  Chief  Executive  Officer of the  Company,
certify,  pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906
of the Sarbanes-Oxley Act of 2002, that:

    1.   The Report   fully   complies with the requirements of Section 13(a) or
         15(d) of the Securities Exchange Act of 1934; and

    2.   The  information  contained  in  the  Report  fairly  presents,  in all
         material respects, the financial condition and results of operations of
         the Company.




                                                         /s/  JAMES A. HAYWARD
                                                         ---------------------
                                                         James A. Hayward
                                                         Chief Executive Officer
                                                         February 29, 2008

</TEXT>
</DOCUMENT>
