520 ILCS 5/1.10
The Department shall take all measures necessary for the conservation, distribution, introduction and restoration of birds and mammals. The Department also shall bring or cause to be brought, actions and proceedings, in the name, and by the authority, of the People of the State of Illinois, to enforce the provisions of this Act, including administrative rules, and to recover any and all fines and penalties hereinafter provided for. Nothing in this Act shall be construed to authorize the Department to change any penalty prescribed by law for a violation of its provisions, or to change the amount of licenses prescribed by law. The Department is authorized to cooperate with the appropriate Departments of the Federal Government and other Departments or agencies of the State government and educational institutions in conducting surveys, experiments, or work of joint interest or benefit.
520 ILCS 5/1.10