Under ARS 13502, a defendant can be found guilty except insane if, at the time of the offense, he or she did not know that the criminal act was wrong. In Arizona, the Insanity Defense is known as Guilty Except Insane, or GEI.GEI pleas are an affirmative defense against criminal charges. There are two applications that can be filled out to help someone receive treatment for a mental health issue: Application for Emergency Evaluation. To use Arizona's insanity defense you must show a condition is not temporary, or arising out of anger, jealousy, rage, or other impulsiveness. In Arizona, criminal defendants have several options available to them.