Terms Used In Illinois Compiled Statutes 55 ILCS 5/1-1003

  • Jurisdiction: (1) The legal authority of a court to hear and decide a case. Concurrent jurisdiction exists when two courts have simultaneous responsibility for the same case. (2) The geographic area over which the court has authority to decide cases.
     Each county bounded by either the Mississippi, Ohio or Wabash river, shall have jurisdiction over such river to the extent it is so bounded, which jurisdiction may be exercised concurrently with the contiguous states bounded by such river.