OSI Training Published Oct. 27, 2015 By Airman 1st Class J.T. Armstrong Public Affairs MINOT AIR FORCE BASE, N.D. -- Agents from the Office of Special Investigations led training to share their process for photographing a crime scene at Minot Air Force Base, N.D., Oct. 22, 2015. The two-part training day lasted about four hours and consisted of a slide presentation and a mock crime scene. Public Affairs photojournalists attended the training, adding insight and sharing techniques from their own training and experiences.