Charity Ludwig, Office of Special Investigations analyst, examines a piece of evidence used for training purposes in a Post Blast Training Course at Ramstein Air Base, Germany, Aug. 10, 2023. The Post Blast Training Course was made up of 46 students, which consisted of U.S. Air Force Office of Special Investigations agents, representatives from Germany, Italy, France, Belgium, Finland, Netherlands and Poland, ATF experts, and Airmen assigned to the 435th Air and Ground Operations Wing. (U.S. Air Force photo by Airman Trevor Calvert)