Wisconsin Statutes Crimes (Ch. 938 to 951) § 946.43. Assaults by prisoners

(a) Places an officer, employee, visitor or another inmate of such prison or institution in apprehension of an immediate battery likely to cause death or great bodily harm; or

(b) Confines or restrains an officer, employee, visitor or another inmate of such prison or institution without the person's consent.

(2m)(a) Any prisoner confined to a state prison or other state, county or municipal detention facility who throws or expels blood, semen, vomit, saliva, urine, feces or other bodily substance at or toward an officer, employee or visitor of the prison or facility or another prisoner of the prison or facility under all of the following circumstances is guilty of a Class I felony:

(b) A court shall impose a sentence for a violation of par. (a) consecutive to any sentence previously imposed or which may be imposed for any crime or offense for which the person was in custody when he or she committed the violation of par. (a).