Final answer:
The MPC insanity test is used to determine whether a person can raise the defense of insanity in criminal cases. It consists of two prongs: cognitive and volitional. A person must demonstrate that their mental disease or defect impaired their ability to appreciate the wrongfulness of their conduct or to conform their conduct to the requirements of the law.
Step-by-step explanation:
The MPC (Model Penal Code) insanity test is used to raise the defense of insanity in criminal cases. According to the MPC, a person is not responsible for criminal conduct if at the time of such conduct, as a result of a mental disease or defect, they lacked substantial capacity to appreciate the wrongfulness of their conduct or to conform their conduct to the requirements of the law.
This test consists of two prongs: the cognitive prong and the volitional prong. The cognitive prong focuses on the individual's ability to understand the nature and consequences of their actions. The volitional prong focuses on the individual's ability to control their conduct in accordance with the law.
An example to illustrate the MPC insanity test is a person who suffers from schizophrenia and believes that they are being pursued by aliens. If that person commits a crime as a result of their delusion, they may argue that they lacked the substantial capacity to appreciate the wrongfulness of their conduct, thus raising the defense of insanity.