Arizona Revised Statutes Title 13. Criminal Code § 13-417. Necessity defense

A. Conduct that would otherwise constitute an offense is justified if a reasonable person was compelled to engage in the proscribed conduct and the person had no reasonable alternative to avoid imminent public or private injury greater than the injury that might reasonably result from the person's own conduct.

B. An accused person may not assert the defense under subsection A if the person intentionally, knowingly or recklessly placed himself in the situation in which it was probable that the person would have to engage in the proscribed conduct.

C. An accused person may not assert the defense under subsection A for offenses involving homicide or serious physical injury.