Rapiscan Systems Receives Order From Government of Nigeria for Rapiscan Secure 1000 Single Pose Advanced Imaging Technology Body Scanners

Rapiscan Systems, a leading supplier of security inspection systems, today announced that it has received a contract award from the Government of Nigeria for multiple Rapiscan Secure 1000 Single Pose Advanced Imaging Technology body scanners.

The award follows the recent announcement by the Nigerian Federal Executive Council to deploy the Advanced Imaging Technology systems in wake of the recent terrorist incident on Northwest Airlines Flight 253 on December 25, 2009. The systems are expected to be installed in all four of the country’s international airports and to be used to screen passengers traveling to the U.S. as well other countries.

OSI Systems (Rapiscan's parent company) Chairman and CEO, Deepak Chopra, stated: “We are pleased to be working closely with the Government of Nigeria to deploy the Rapiscan Secure 1000 Single Pose. We think that the Secure 1000 Single Pose iseal for rapidly growing aviation markets such as Nigeria’s. It is easy to operate and service. Its backscatter technology provides significant detection benefits, while at the same time it offers the best passenger throughput of any available screening system.”

The Secure 1000 Single Pose has been approved by the U.S. Transportation Security Administration and is currently being deployed at airports in the U.S. and the United Kingdom. The Secure 1000 Single Pose uses advanced backscatter technology and proprietary image processing software to rapidly detect potential threats on passengers at aviation checkpoints. The Secure 1000 Single Pose is designed to help screeners detect potential threat objects concealed on passengers. Using backscatter imaging technology and proprietary image processing software, the system offers advantages over alternatives such as metal detectors and hand searches, because it can rapidly help screeners comprehensively detect non-metallic threats and explosives, as well as metal objects. In addition, the system, which complies with all U.S. government passenger privacy and safety requirements, is configured to improve overall checkpoint efficiency: to complete the scan, a passenger faces the Secure 1000 Single Pose while front and back scans are generated and within seconds, a computer-aided image is presented for inspection, thereby streamlining the screening process.

About Rapiscan Systems Rapiscan Systems, a division of OSI Systems, Inc. is a leading supplier of security inspection solutions utilizing X-ray and gamma-ray imaging, and advanced threatentification techniques such as neutron and diffraction analysis. The company?s products are sold into four market segments; Baggage and Parcel Inspection, Cargo and Vehicle Inspection, Hold Baggage Screening and People Screening. The company has an installed base globally of more than 70,000 security and inspection systems. The Rapiscan Systems product line is manufactured at four locations and supported by a global support service network.  The company was recognized for its market leadership with one of the United Kingdom's most prestigious distinctions The Queen's Awards for Enterprise and named by Frost & Sullivan as the 2008 North American Homeland Security Inspection and Screening Company of the Year.  For more information on Rapiscan Systems, please visit www.rapiscansystems.com.

For more information, conctact: Amy Talley, Jefferson Communications Email: atalley@jeffersoncomm.com Phone: 703.323.8939 Website: www.jeffersoncomm.com

This press release contains forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended. Such statements include information regarding the company's expectations, goals or intentions about the future, including orders that may be placed under theIQ contract issued to Rapiscan Systems for its Secure 100 Single Pose. The actual results may differ materially from those described in or implied by any forward-looking statement. In particular, because the contract is anIQ arrangement, the Government may not ultimately place orders with Rapiscan Systems for the full contract amount. Other important factors are set forth in the Securities and Exchange Commission filings OSI Systems, Inc. All forward-looking statements speak only as of the date made, and the company undertakes no obligation to update these forward-looking statements.