A.R.S. § 1-201: Adoption of common law; exceptions

The common law only so far as it is consistent with and adapted to the natural and physical conditions of this state and the necessities of the people thereof, and not repugnant to or inconsistent with the Constitution of the United States or the constitution or laws of this state, or established customs of the people of this state, is adopted and shall be the rule of decision in all courts of this state.