20 ILCS 3435/3: Permits.

(a) It is unlawful for any person, either by himself or through an agent, to knowingly explore, excavate, possess, or collect any of the archaeological or paleontological resources protected by this Act, unless such person obtains a permit issued by the Department of Natural Resources.

(b) It is unlawful for any person, either by himself or through an agent, to knowingly disturb any archaeological or paleontological resource protected under this Act.

(c) It is unlawful for any person, either by himself or through an agent, to offer any object for sale or exchange with the knowledge that it has been previously collected or excavated in violation of this Act.