Ariz. Rev. Stat. § 13-1005 – Renunciation of attempt, solicitation, conspiracy or facilitation; defenses

A. In a prosecution for attempt, conspiracy or facilitation, it is a defense that the defendant, under circumstances manifesting a voluntary and complete renunciation of his criminal intent, gave timely warning to law enforcement authorities or otherwise made a reasonable effort to prevent the conduct or result which is the object of the attempt, conspiracy or facilitation.
B. In a prosecution for solicitation, it is a defense that the defendant, under circumstances manifesting a voluntary and complete renunciation of the defendant's criminal intent completed both of the following acts:
1. 1. Notified the person solicited.
2. 2. Gave timely warning to law enforcement authorities or otherwise made a reasonable effort to prevent the conduct or result solicited.
C. A renunciation is not voluntary and complete within the meaning of this section if it is motivated in whole or in part by:
1. 1. A belief that circumstances exist which increase the probability of immediate detection or apprehension of the accused or another participant in the criminal enterprise or which render more difficult the accomplishment of the criminal purpose; or
2. 2. A decision to postpone the criminal conduct until another time or to transfer the criminal effort to another victim, place or another but similar objective.
D. A warning to law enforcement authorities is not timely within the meaning of this section unless the authorities, reasonably acting upon the warning, would have the opportunity to prevent the conduct or result. An effort is not reasonable within the meaning of this section unless the defendant makes a substantial effort to prevent the conduct or result.