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Illinois State Government Information: Judicial Branch

A research guide for Illinois government information

Illinois Courts

Illinois Courts
A website for the Illinois Courts (Supreme, Appellate and Circuit Courts).  Opinions, rulings, oral argument calendars and video, rules, judicial events, information about judges, and much more provided.  Opinions archived 1996-present.

Illinois Court Publications

Illinois Reports
Official reports of decisions by the Supreme Court of Illinois.  The library has published case decisions from volume 1, 1819 (Government Information 345.42 I29) in addition to the online editions available from free and subscription sources.

  • Lexis-Nexis Academic (NU affiliated users only) - Illinois Supreme Court decisions 1819-present, Illinois Court of Appeals from 1877, Illinois Court of Claims from 1889, US Federal 7th Circuit District Court and Court of Appeals cases,  Bankruptcy and Tax Court cases
  • HeinOnline (NU affiliated users only) - provides case decisions from the Illinois Supreme Court (1819-present), Illinois Court of Appeals (1877-1931),  Illinois Court of Claims (1906-1960)
  • Illinois Courts, online 1996-present, freely available


Constitution of the State of Illinois
Hosted on the Illinois General Assembly website

1970 Illinois Constitution Annotated for Legislators, 5th edition (2018).
Prepared by the Illinois Legislative Research Unit