Local law enforcement officers prepare to enter a vacant Peterson dormitory room as part of a building search and clear exercise. Police from the Colorado Springs Police Department, El Paso County Sheriff, and the Federal Bureau of Investigation teamed with 21st Security Forces Squadron Airmen for a day of joint training. Peterson security forces Airmen and their civilian counterparts practiced a variety of policing skills including tactical team movements, search and clearing of rooms and buildings, hostage rescue operations, weapon tactics, rules of engagement and mission execution procedures. (Air Force photo by Larry Hulst)