(720 ILCS 5/2-21) (from Ch. 38, par. 2-21)
    Sec. 2-21. "State".
    "State" or "this State" means the State of Illinois, and all land and water in respect to which the State of Illinois has either exclusive or concurrent jurisdiction, and the air space above such land and water. "Other state" means any state or territory of the United States, the District of Columbia and the Commonwealth of Puerto Rico.
(Source: Laws 1961, p. 1983.)