Which insanity rule asks whether the defendant knew what he or she was doing or knew that what he or she was doing was wrong?

Which insanity rule asks whether the defendant knew what he or she was doing or knew that what he or she was doing was wrong?

• A. Irresistible impulse rule
• B. Inchoate offense
• C. McNaughten rule
• D. Corpus delicti

Answer: (C)

The test is about a cognitive understanding standard in insanity defenses. The rule named after McNaghten focuses on whether, at the time of the act, the defendant either knew the nature and quality of what they were doing or knew that what they were doing was wrong. If mental illness prevented understanding the act’s true nature or prevented awareness that it was wrong, the defendant could be found not guilty by reason of insanity. Understanding the alternatives helps check the concept: the irresistible impulse rule centers on the ability to control impulses even if the person knows the act is wrong, so it’s about volitional control rather than knowledge of the act. Inchoate offenses relate to attempts or preparations that may still be prosecutable regardless of insanity. Corpus delicti refers to the body of the crime—the proof that a crime occurred—rather than a test of mental state.

The test is about a cognitive understanding standard in insanity defenses. The rule named after McNaghten focuses on whether, at the time of the act, the defendant either knew the nature and quality of what they were doing or knew that what they were doing was wrong. If mental illness prevented understanding the act’s true nature or prevented awareness that it was wrong, the defendant could be found not guilty by reason of insanity.

Understanding the alternatives helps check the concept: the irresistible impulse rule centers on the ability to control impulses even if the person knows the act is wrong, so it’s about volitional control rather than knowledge of the act. Inchoate offenses relate to attempts or preparations that may still be prosecutable regardless of insanity. Corpus delicti refers to the body of the crime—the proof that a crime occurred—rather than a test of mental state.