Office of Special Investigations

The Office of Special Investigations (OSI) is a federal agency within the U.S. Department of Justice that focuses on identifying and removing individuals who are not legally eligible to serve in the U.S. military or hold certain security clearances, often due to false or deceptive information. It conducts detailed investigations to ensure the integrity of military personnel and national security. The OSI aims to prevent threats by verifying identities and backgrounds, maintaining the safety and trustworthiness of military and government operations.