Which tests are used in insanity determinations?

Which tests are used in insanity determinations?

• A. Durham Rule, ALI Standard
• B. Respondeat Superior
• C. M'Naughten Test, Irresistible Impulse, MPC Combination Test, NY Substantial Capacity Test
• D. Safe Harbor Test

Answer: (C)

Insanity determinations in criminal law hinge on whether mental disorder affects either the ability to know right from wrong, the ability to control behavior, or both. The strongest list of tests used in practice includes the M’Naghten test, which is about understanding right from wrong; the Irresistible Impulse test, which covers cases where the person knows the act is wrong but cannot resist committing it; the Model Penal Code combination test, which asks whether the person lacks substantial capacity to appreciate the criminality of the conduct or to conform the conduct to the law due to a mental disease or defect; and the New York Substantial Capacity Test, a variant that requires substantial capacity in either understanding wrongfulness or conforming to the law. These standards reflect cognitive, volitional, and hybrid approaches that jurisdictions actually apply. The Durham Rule is historically noted but largely rejected today for being too broad, and Safe Harbor is not a recognized insanity standard. The ALI Standard refers to the MPC approach, which is encompassed by the combination MPC framework listed above.

Insanity determinations in criminal law hinge on whether mental disorder affects either the ability to know right from wrong, the ability to control behavior, or both. The strongest list of tests used in practice includes the M’Naghten test, which is about understanding right from wrong; the Irresistible Impulse test, which covers cases where the person knows the act is wrong but cannot resist committing it; the Model Penal Code combination test, which asks whether the person lacks substantial capacity to appreciate the criminality of the conduct or to conform the conduct to the law due to a mental disease or defect; and the New York Substantial Capacity Test, a variant that requires substantial capacity in either understanding wrongfulness or conforming to the law. These standards reflect cognitive, volitional, and hybrid approaches that jurisdictions actually apply.

The Durham Rule is historically noted but largely rejected today for being too broad, and Safe Harbor is not a recognized insanity standard. The ALI Standard refers to the MPC approach, which is encompassed by the combination MPC framework listed above.