U.S. Air Force Staff Sgt. Nathaniel Humphreys, a military working dog handler assigned to the 97th Security Forces Squadron, demonstrates how the dogs communicate that they have found a controlled substance during the 1st Honorary Commander Immersion Day, Oct. 14, 2020, Oklahoma. The military working dog team explained how their training and handling of their dogs is vital to the protection of the installation and base security. (U.S. Air Force photo by Staff Sgt. Cody Dowell)