Ill. Const. art. I, § 16
- Constitution
- Constitution of Illinois
- Text as of
- October 2026
What does this section say?
No ex post facto law, or law impairing the obligation of contracts or making an irrevocable grant of special privileges or immunities, shall be passed. (Source: Illinois Constitution.)
The text is copied from the official source: www.ilga.gov. This is the stored text for research. It is not legal advice; check the official source before you rely on it.