(40 ILCS 5/5-113) (from Ch. 108 1/2, par. 5-113)
    Sec. 5-113. Act of duty.
    "Act of duty": Any act of police duty inherently involving special risk, not ordinarily assumed by a citizen in the ordinary walks of life, imposed on a policeman by the statutes of this State or by the ordinances or police regulations of the city in which this Article is in effect or by a special assignment; or any act of heroism performed in the city having for its direct purpose the saving of the life or property of a person other than the policeman.
(Source: Laws 1963, p. 161.)