§ 131.01 DAMAGE OF FIREFIGHTING APPARATUS, HYDRANTS, OR EQUIPMENT.
   No person shall knowingly, without proper authorization, cut, injure, damage, deface, destroy, or tamper with any fire hydrant or any public or private firefighting equipment, or any apparatus appertaining to firefighting equipment; or intentionally, without proper authorization, open any fire hydrant.
(ILCS Chapter 720, Act 5, § 21-1(a)(8), (9)) Penalty, see § 130.99