The Arizona Department of Public Safety became operational by the executive order of Governor Jack Williams on July 1, 1969. Governor Williams’ mandate consolidated the functions and responsibilities of the Arizona Highway Patrol, the Enforcement Division of the State Department of Liquor Licenses and Control and the Narcotics Division of the State Department of Law.

The Arizona Department of Public Safety enforces state law with primary responsibility in the areas of motor vehicle traffic, narcotics, organized crime/racketeering, and specific regulatory functions. Operational and technical assistance is provided to local and state government agencies and other components of the criminal justice community. Services include scientific analysis, aircraft support, emergency first care, criminal information systems, and statewide communications. The Department also promotes and enhances the quality of public safety through cooperative enforcement operations and by increasing public awareness of criminal activities.