510 ILCS 68/105-90
It is unlawful for any person to take or attempt to take any species of reptile or amphibian, or parts thereof, within or upon the land of another, or upon waters flowing over or standing on the land of another, without first obtaining permission from the owner or the owner's designee. For the purposes of this Section, the owner's designee means anyone who the owner designates in a written authorization and the authorization must contain (i) the legal or common description of property for which the authority is given, (ii) the extent that the owner's designee is authorized to make decisions regarding who is allowed to take or attempt to take any species of reptiles or amphibians, or parts thereof, and (iii) the owner's notarized signature. Any person who violates this Section shall be guilty of a Class B misdemeanor.
510 ILCS 68/105-90