Randy Metcalf/The Explorer, A PHI Air Medical helicopter lands during a terrorist training exercise last week.
Randy Metcalf/The Explorer, Members of the Tucson Police Department make their way through the desert during a training exercise last week at Old Tucson Studios.
Randy Metcalf/The Explorer, Members of the Pima Regional Tactical Rescue and SWAT teams participate in a training exercise at Old Tucson Studios last Wednesday. The full-scale terrorist response exercise aimed to prepare law enforcement agencies to effectively respond to terrorist events in Arizona. The exercise included Northwest Fire District, Tucson Fire Department, Tucson Police Department, FBI and many other agencies.