OSI

• Origins in World War II: The Office of Special Investigations (OSI) was established in 1948, but its roots trace back to military security and counterintelligence operations developed during World War II. • Modeled After the FBI: The OSI was modeled after the Federal Bureau of Investigation (FBI), adopting many of its investigative techniques and organizational structures to handle crimes and counterintelligence. • First Female Special Agent: In 1971, OSI hired its first female special agent, breaking gender barriers within military investigative agencies. • Global Presence: OSI operates in more than 200 locations worldwide, making it one of the most widely deployed U.S. military investigative agencies. • High-Profile Espionage Cases: OSI has investigated and helped apprehend several high-profile spies, including John A. Walker, who provided classified information to the Soviet Union. • Forensic Innovations: OSI was among the first military agencies to utilize forensic science and polygraph examinations in criminal and counterintelligence investigations. • Involvement in Terrorism Cases: Since the 9/11 attacks, OSI has played a significant role in counterterrorism operations, both domestically and abroad. • Cold War Operations: During the Cold War, OSI agents were instrumental in uncovering and preventing sabotage and espionage attempts against U.S. Air Force assets in Europe and Asia. • Wartime Deployments: OSI agents have deployed to every major conflict since its inception, including Korea, Vietnam, the Gulf War, Iraq, and Afghanistan, providing security, investigations, and counterintelligence support. • Joint Operations: OSI routinely works with other U.S. and allied intelligence and law enforcement agencies, including NCIS, Army CID, the FBI, and foreign counterparts, to combat global threats.