The Air Force Office of Special Investigations (AFOSI) provides professional investigative service to commanders of all Air Force activities; its primary responsibilities are criminal investigations and counterintelligence services. The mission of AFOSI is to Identify, exploit and neutralize criminal, terrorist and intelligence threats to the Air Force, Department of Defense and U.S. Government.
(From: http://www.osi.af.mil/About/Fact-Sheets/Display/Article/349945/air-force-office-of-special-investigations/)
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