See the latest statutes here:
Sec. 24-1. Unlawful use of weapons.
(a) A person commits the offense of unlawful use of weapons when he knowingly:
(2) Carries or possesses with intent to use
unlawfully against another, a dagger, dirk, billy, dangerous knife, razor, stiletto, broken bottle or another piece of glass, stun gun or taser or any other dangerous or deadly weapon or instrument of like character;
(13) Carries or possesses on or about his or her
person while in a building occupied by a unit of government, a billy club, another weapon of like character, or another instrument of like character intended for use as a weapon. For the purposes of this Section, “billy club” means a short stick or club commonly carried by police officers which are either telescopic or constructed of a solid piece of wood or other man-made material.