5 ILCS 580/1

Consent of the State of Illinois is given to the United States for the acquisition by purchase, gift or lease, of such areas of land or water, or of land and water in Illinois, as the United States may deem necessary for the establishment of preserves or reservations for migratory birds, in accordance with the Act of Congress approved February 18, 1929. The State of Illinois retains concurrent jurisdiction with the United States over such areas in the matter of the service thereon, of all civil and criminal process issuing under the authority of the State of Illinois.