Section 720 ILCS 5/16-2 - Theft of Lost or Mislaid Property
A person commits theft of lost or mislaid property when he or she obtains control over the property and:
Theft of lost or mislaid property where:
(1) the value does not exceed $500 is a Class B misdemeanor;
(2) the value exceeds $500 but does not exceed $10,000 is a Class A misdemeanor; and