On guard
Staff Sgt. Matthew Solis, 47th Security Forces Squadron reports and analysis, cordons a simulated crime scene on Laughlin Air Force Base, Texas, Oct. 30, 2015. The exercises involved a simulated aircraft hijack and an active shooter scenario, a combined force protection condition, and an anti-terrorism and chemical, biological, radiological, nuclear and explosives scenario. (U.S. Air Force photo by Airman 1st Class Ariel D. Partlow)(Released)