On a biennial basis, the Arizona Criminal Justice Commission is tasked with preparing for the governor a criminal justice system trends report. Available resources, the size and complexity of the criminal justice system and the availability of relevant data influence the scope of the issues addressed in the report. In support of data-driven decision making, this report uses publicly available data to describe the activity of Arizona’s criminal justice system from law enforcement agencies description of the offenses reported to their agencies to the population of the Arizona Department of Corrections.