Insanity Defense

In 750-1,000 words, discuss the following:
Identify the different forms for the insanity defense.
Identify the most common insanity defense applied by the States.
Describe how often the insanity defense raised.
Discuss how a criminal defendant assessed for insanity.
Describe how a psychologist would be utilized as an expert witness to prove or disprove an insanity defense.