Ariz. Rev. Stat. § 12-716
A. If the court finds by a preponderance of the evidence that a plaintiff is harmed while the plaintiff is attempting to commit, committing or fleeing after having committed or attempted to commit a felony criminal act or if a person intentionally or knowingly caused temporary but substantial disfigurement or temporary but substantial impairment of any body organ or part or a fracture of any body part of another person, the following presumptions apply to any civil liability action or claim:
1. A victim or peace officer is presumed to be acting reasonably if the victim or peace officer threatens to use or uses physical force or deadly physical force or a police tool product to either:
2. This state or a political subdivision of this state is presumed to have reasonably hired and trained its peace officers to use physical force or deadly physical force if a peace officer threatens to use or uses physical force or deadly physical force to either:
3. The police tool product that caused the physical harm and any accompanying warning or instruction are presumed not to be defective and the manufacturer of police tools is presumed not to be negligent if, before the sale by the manufacturer, the product either:
C. For the purposes of this section: