Section 301, Mental examination of defendant. The judge will have you fill out a form listing your income, assets, and debts.Before you agree to an insanity plea, make sure you understand all of the consequences. Contact the best insanity defense lawyer in Utah. Instead, defendants may be found "guilty, but insane" and sentenced to psychiatric institutionalization instead of prison. Three states -- Montana, Idaho, and Utah -- do not allow the insanity defense. Before criminal justice systems began using mental health courts, people had the choice of pleading insanity or accepting the punishment for their crimes. You will need an Adobe Acrobat to view, fill out, or print the PDF forms. Idaho and Utah have also legislatively abolished the insanity defense.