American Science and Engineering, Inc. Receives $20 Million Follow-On Order from Middle East Customs Agency to Secure Seaports.

Second Phase is funded for Multiple OmniView Gantry Systems with Proprietary Shaped Energy Technology

BILLERICA, Mass. -- American Science and Engineering, Inc. (NASDAQ: ASEI) (AS&E([R])), a leader in X-ray detection technology, announced today the receipt of a $20 million follow-on order from a Middle East Customs Agency to fund the second-phase of a $45 million contract for multiple OmniView([TM]) Gantry Shaped Energy([R]) Systems. The first-phase of the contract had been funded at $25 million in March of 2006.

"We have a long-standing relationship with this customer to provide a full range of products offerings to secure their strategic ports and borders," said Anthony Fabiano, President and CEO. "The OmniView Gantry's multi-view, multi-technology capability offers manifest verification and superior detection of threats and contraband. We are working closely with this Customs Agency to install these additional OmniView systems at their seaports. This follow-on order attests to their satisfaction with AS&E's comprehensive solutions for port security."

About OmniView Gantry Shaped Energy System

The OmniView Gantry Shaped Energy System is the only multi-view relocatable system available today that combines high-energy transmission inspection plus multiple Z Backscatter[TM] X-ray views. The combination of technologies delivers the most reliable means of detecting contraband and threatening materials, such as weapons and explosives hidden in cargo containers, tankers, and large vehicles. OmniView Shaped Energy Gantry provides high penetration into inspected objects. The System's scanning platform operates by moving on rails past stationary vehicles and cargo. The System is bi-directional allowing for a high throughput of approximately 2 trucks per scan, 24 trucks per hour.

About AS&E([R])

American Science and Engineering, Inc. (AS&E) is the leading worldwide supplier of innovative X-ray inspection systems. With over 45 years of experience in developing advanced X-ray security systems, the Company's product line utilizes a combination of technologies, including patented Z Backscatter technology, Radioactive Threat Detection (RTD), high energy transmission and dual energy transmission X-ray. These technologies offer superior X-ray threat detection for plastic explosives, plastic weapons, liquid explosives, dirty bombs and nuclear devices. AS&E's complete range of products include cargo inspection systems for port and border security, baggage screening systems for facility and aviation security, and personnel and passenger screening systems. AS&E systems protect high-threat facilities and help combat terrorism and trade fraud, drug smuggling, weapon smuggling, and illegal immigration and people smuggling. AS&E customers include leading government agencies, border authorities, military bases, airports and corporations worldwide, including the U.S. Department of Homeland Security (DHS), U.S. Department of Defense (DoD), U.S. Customs and Border Protection (CBP), Royal Thai Police, HM Revenue & Customs (U.K.) and Hong Kong Customs. For more information on AS&E products and technologies, please visit www.as-e.com.

Safe Harbor Statement. The foregoing press release contains statements concerning AS&E's financial performance, markets and business operations that may be considered "forward-looking" under applicable securities laws. AS&E wishes to caution readers of this press release that actual results might differ materially from those projected in any forward-looking statements. Factors which might cause actual results to differ materially from those projected in the forward-looking statements contained herein include the following: significant reductions or delays in procurements of the Company's systems by the United States and other governments; disruption in the supply of any source component incorporated into AS&E's products; litigation seeking to restrict the use of intellectual property used by the Company; potential product liability claims against the Company; global political trends and events which affect public perception of the threat presented by drugs, explosives and other contraband; global economic developments and the ability of governments and private organizations to fund purchases of the Company's products to address such threats; and the potential insufficiency of Company resources, including human resources, capital, plant and equipment and management systems, to accommodate any future growth, and future delays in federal funding. These and certain other factors which might cause actual results to differ materially from those projected are detailed from time to time in AS&E's periodic reports and registration statements filed with the Securities and Exchange Commission, which important factors are incorporated herein by reference. AS&E undertakes no obligation to update forward looking statements to reflect changed assumptions, the occurrence of unanticipated events, or changes in future operating results, financial condition or business over time.