[Amended at time of adoption of Code (see Ch. 1, General Provisions, Art. I)]
No person shall knowingly and without authority enter any part of or operate any vehicle, aircraft, watercraft or snowmobile.
A. 
Offense.
(1) 
A person commits an illegal act when he:
[Amended at time of adoption of Code (see Ch. 1, General Provisions, Art. I)]
(a) 
Knowingly and without lawful authority enters or remains within or on a building;
(b) 
Enters upon the land of another, after receiving prior to such entry notice from the owner or occupant that such entry is forbidden;
(c) 
Remains upon the land of another, after receiving notice from the owner or occupant to depart;
(d) 
Presents false documents or falsely represents his or her identity orally to the owner or occupant of a building or land in order to obtain permission from the owner or occupant to enter or remain in the building or on the land;
(e) 
Intentionally removes a notice posted on residential real estate as required by Subsection (l) of Section 15-1505.8 of Article XV of the Code of Civil Procedure before the date and time set forth in the notice; or
(f) 
Enters a field used or capable of being used for growing crops, an enclosed area containing livestock, an agricultural building containing livestock or an orchard in or on a motor vehicle (including an off-road vehicle, motorcycle, moped or any other powered two-wheel vehicle) after receiving, prior to the entry, notice from the owner or occupant that the entry is forbidden or remains upon or in the area after receiving notice from the owner or occupant to depart.
(2) 
For purposes of this Subsection A, this subsection shall not apply to being in a building which is open to the public during its normal hours of operation, nor shall this subsection apply to a person who enters a public building under the reasonable belief that the building is open to the public.
B. 
A person has received notice within the meaning of Subsection A if he has been notified personally, either orally or in writing, or if a printed or written notice forbidding such entry to him or a group of which he is a part has been conspicuously posted or exhibited at the main entrance to such land or the forbidden part thereof.