troopers and 4 K9s have died while on duty. The agency, along with the Arizona Highway Patrol Association, remembers each fallen officer at an annual memorial ceremony on the first Monday of May. See also List of law enforcement agencies in Arizona State police Highway patrol References External links Arizona Department of Public Safety Arizona Department of Homeland Security Arizona Agencies Arizona Division of Emergency Management Ready.gov Arizona Highway Patrol Association History of Arizona Public Safety Highway Patrol Public Safety Government agencies established in 1969 1969 establishments in Arizona