Wisconsin Statutes Emergency Medical Services (Ch. 256, 257) § 256.40. Opioid antagonists

(a) “Fire fighter” means any person employed by the state or any political subdivision as a member or officer of a fire department or a member of a volunteer fire department, including the state fire marshal and deputies.

(b) “Law enforcement agency” means an agency of a federally recognized Indian tribe or band or a state or political subdivision of a state, whose purpose is the detection and prevention of crime and enforcement of laws or ordinances.

(c) “Law enforcement officer” means any person employed by a law enforcement agency who is authorized to make arrests for violations of the laws or ordinances that the person is employed to enforce.

(d) “Opioid-related drug overdose” means a condition including extreme physical illness, decreased level of consciousness, respiratory depression, coma, or the ceasing of respiratory or circulatory function resulting from the consumption or use of an opioid, or another substance with which an opioid was combined.

(2)(a) Subject to par. (b), the department shall permit all emergency medical services practitioners to administer naloxone or another opioid antagonist to individuals who are undergoing or who are believed to be undergoing an opioid-related drug overdose.

(b) The department shall require emergency medical services practitioners to undergo any training necessary to safely and properly administer naloxone or another opioid antagonist as specified under par. (a).

(c) Every ambulance service provider shall do all of the following:

(3)(a) A law enforcement agency, county jail, or fire department may enter into a written agreement to affiliate with an ambulance service provider or a physician for all of the following purposes:

(b) A law enforcement officer, jailer or keeper of a jail or person designated with custodial authority by the jailer or keeper, or fire fighter who, reasonably believing another person to be undergoing an opioid-related drug overdose, administers naloxone or another opioid antagonist to that person shall be immune from civil or criminal liability for any outcomes resulting from the administration of the opioid antagonist to that person, if the law enforcement officer, jailer or keeper of a jail or person designated with custodial authority by the jailer or keeper, or fire fighter is acting pursuant to an agreement and any training obtained under par. (a).