Illinois Statutes Chapter 5. General Provisions § 595/10. Cession of jurisdiction to the United States

(a) The United States owns or controls certain lands under the jurisdiction of the Department of the Navy used as the United States Naval Training Base at Great Lakes in Lake County, Illinois, and concurrent legislative jurisdiction over those lands has not been ceded to the United States by the State of Illinois. The ceding of concurrent legislative jurisdiction to the United States will facilitate the orderly administration of law and justice by the State and by the United States in the Great Lakes Base area.

(b) The State of Illinois cedes to the United States concurrent legislative jurisdiction over all the lands and parcels of land owned or controlled or that may from time to time later be owned or controlled by the United States under the jurisdiction of the Department of the Navy and used as the United States Naval Training Base at Great Lakes, Lake County, Illinois.

(c) Cession shall take effect only upon the filing of an acceptance by the United States. Federal jurisdiction shall end whenever the United States shall cease to own, lease, or use for national purposes the lands or improvements on those lands.

(d) Nothing in this Section shall be construed to deprive the State of Illinois of any of its jurisdiction over the described lands, and that jurisdiction shall be concurrent with that of the United States.