U.S. Air Force Col. Amy Bumgarner, Office of Special Investigations commander, stands at attention next to U.S. Air Force Col. Douglas Hassebrock, individual mobilization augmentee (IMA) to the OSI commander, during his retirement ceremony at the Semper Fidelis Memorial Chapel, Quantico, Va., June 23, 2023. Hassebrock retired after more than 30 years of service. (U.S. Air Force photo by Tech. Sgt. Joshua King)