Mich. Comp. Laws § 750.85

Sec. 85. (1) A person who, with the intent to cause cruel or extreme physical or mental pain and suffering, inflicts great bodily injury or severe mental pain or suffering upon another person within his or her custody or physical control commits torture and is guilty of a felony punishable by imprisonment for life or any term of years. (2) As used in this section: (a) "Cruel" means brutal, inhuman, sadistic, or that which torments. (b) "Custody or physical control" means the forcible restriction of a person's movements or forcible confinement of the person so as to interfere with that person's liberty, without that person's consent or without lawful authority. (c) "Great bodily injury" means either of the following: (i) Serious impairment of a body function as that term is defined in section 58c of the Michigan vehicle code, 1949 PA 300, MCL 257.58c. (ii) One or more of the following conditions: internal injury, poisoning, serious burns or scalding, severe cuts, or multiple puncture wounds. (d) "Severe mental pain or suffering" means a mental injury that results in a substantial alteration of mental functioning that is manifested in a visibly demonstrable manner caused by or resulting from any of the following: (i) The intentional infliction or threatened infliction of great bodily injury. (ii) The administration or application, or threatened administration or application, of mind-altering substances or other procedures calculated to disrupt the senses or the personality. (iii) The threat of imminent death. (iv) The threat that another person will imminently be subjected to death, great bodily injury, or the administration or application of mind-altering substances or other procedures calculated to disrupt the senses or personality. (3) Proof that a victim suffered pain is not an element of the crime under this section. (4) A conviction or sentence under this section does not preclude a conviction or sentence for a violation of any other law of this state arising from the same transaction.