ALTUS AIR FORCE BASE, Okla. -- Staff Sgt. DeAndre Turner, 97th Security Forces Squadron Military Working Dog handler and MWD Bess, passed a handler team certification test, July 28, 2021. Each newly paired handler and their dog must undergo a certification to ensure they can properly work as an effective team. The test is for both the handler and the dog on their ability to detect and work as a team in a controlled, timed environment.