Applied DNA Sciences, Inc. Signs Agreement with Pach and Company to Distribute DNA-Embedded Security Access Systems in North America.

Business Editors/High-Tech Writers

The International Security Conference National Summit on Security

LOS ANGELES--(BUSINESS WIRE)--Oct. 1, 2003

The DNA Anti-Counterfeiting Security Access System Will Be

Demonstrated at ISC's National Summit on Security at Booth #1439

Applied DNA Sciences, Inc. (OTCBB: APDN), a provider of proprietary DNA-embedded security products and services that protect corporate and intellectual property from counterfeiting and fraud, has signed a value added reseller (VAR) agreement with Pach and Company. Security industry specialists, Pach and Company will be distributing Applied DNA Sciences' DNA-embedded security products in North America. Both companies will be participating in The International Security Conference (ISC) National Summit on Security to be held at the Washington D.C. Convention Center from October 1st through 3rd.

The company will demonstrate its Applied DNA(TM) Security Access System at booth #1439 and at a press conference at 3:00 P.M. on Wednesday, October 1st in the press conference room. The Applied DNA(TM) Security Access System has been submitted for judging in the New Product Showcase, which will take place from 10:00 A.M. to 10:15 A.M. in the convention theater.

John Camp, national sales manager for Pach and Company commented, "Pach and Company is very excited about the potential this new and innovative technology imparts to the security industry, as well as the unique enhancements it brings to our AeGIS Series family of access control products. While the flexibility of Applied DNA Sciences Access Control Products allows their equipment to be retrofitted to any existing system, the accuracy and authentication capabilities this new DNA technology provides virtually leapfrogs all other existing biometric technologies and makes counterfeiting, forgery and attempted illegal manipulation of data almost impossible."

The anti-counterfeit Applied DNA(TM) Security Access System is a state-of-the-art biotechnology system comprised of the Applied DNA(TM) Chip and the Applied DNA(TM) Access Control Chip Reader. Combinations of plant DNA are embedded into a non-silicon based microchip (Applied DNA(TM) Chip) using a proprietary technique. The Security Access System is secure, versatile and uses credit card type media for use with a slot reader or contact point system for instant authentication. The security access system controls and prevents individual and corporate identity theft and unauthorized intrusion.

"We are pleased to announce our new VAR agreement with Pach and Company at the National Summit on Security. This is an excellent opportunity for both companies to demonstrate our DNA-embedded security products and services to government security professionals seeking wide-scale security solutions," said Larry Lee, chief executive officer of Applied DNA Sciences, Inc.

Applied DNA Sciences is able to isolate and combine unique sequences of DNA codes that become a fingerprint or traceable marking for any product. This fingerprint is virtually impossible to replicate. A key to this exclusive biotechnology is the ability to embed and/or apply combinations of plant DNA to patented products and applications. The company's proprietary production techniques have overcome the technical obstacles to stabilizing this DNA for up to a hundred years. The unique characteristics and combinations of these DNA sequences are used as tools to differentiate and verify product authenticity.

An International Security Conference (ISC) event, The National Summit on Security is produced by Reed Exhibitions and sponsored by the Washington D.C.-based Security Industry Association (SIA) and endorsed by the National Burglar and Fire Alarm Association (NBFAA). The National Summit on Security is part of Reed Exhibitions' portfolio of security events including the upcoming ISC West in 2004 in Las Vegas.

About Pach and Company

Established in 1973, Pach and Company provides security products for the access control market and industrial market metal fabrication for the wholesale fence trade. The company markets products through wholesale distribution with worldwide fence and security industry leaders, distributing its product lines to major points in the United States, Canada, and South America.

Pach and Company developed a series of products for the commercial, industrial and residential markets offering these through authorized distributors. Pach and Company continues to build on its product line of AeGIS Access Control products, custom metal fab and other security industry items.

Pach and Company offers an international sales force that provides localized support to authorized distributors, dealer/installers, and consumers. Pach and Company is located at 941 Calle Negocio, San Clemente, CA 92673; Tel: [phone]; Fax: [phone].

About Applied DNA Sciences, Inc.

Applied DNA Sciences, Inc. provides proprietary DNA-embedded biotechnology security products and services, using plant DNA, that verify authenticity and protect corporate and government agencies from counterfeiting, fraud, piracy, product diversion, identity theft and unauthorized intrusion. Applied DNA Sciences has an exclusive licensing and partnership agreement covering North America and Europe with Biowell Technology, Inc. (http://www.biowell.com.tw/eng) of Taiwan. The company develops, markets, and sub-licenses DNA security systems, supply-chain management systems and anti-counterfeit solutions. Applied DNA Sciences' technology addresses the more than $350 billion of counterfeit products sold each year, as well as the multi-billion dollar homeland security market. The company is headquartered at 9255 West Sunset Boulevard, Los Angeles, CA 90069; Tel: [phone]; Fax: [phone] or visit www.ADNAS.com.

The statements made by Applied DNA Sciences, Inc. (the Company) may be forward-looking in nature and are made pursuant to the safe harbor provisions of the Private Securities Litigation Reform Act of 1995. Forward-looking statements describe the Company's future plans, projections, strategies and expectations, and are based on assumptions and involve a number of risks and uncertainties, many of which are beyond the control of Applied DNA Sciences, Inc. Actual results could differ materially from those projected due to changes in interest rates, market competition, changes in the local and national economies, and various other factors. The Company undertakes no obligation to update publicly any forward-looking statements to reflect new information, events or circumstances after the date hereof to reflect the occurrence of unanticipated events.