525 ILCS 30/23
Any person who, directly or through an employee or agent, (a) willfully kills, injures, disturbs or removes any animal or plant or willfully damages, destroys or removes any object, or attempts to do any of the preceding, on a dedicated area, except as provided by rule for scientific research or for management to preserve or restore natural conditions, or on a registered area, except as provided by rule, (b) enters a dedicated or registered area that is closed to the public contrary to the rules or without permission of the owner or custodian or (c) otherwise violates this Act or any rule is guilty of a Class A misdemeanor. When the violation is a continuing offense, each day shall be considered a separate violation. Enforcements under Sections 21, 22 and 23 may be concurrent or separate.
525 ILCS 30/23