Illinois
How Calder v. Bull applies in Illinois: state-specific rules, key cases, and bar exam notes for Constitutional Law.
Illinois embraces the principles articulated in Calder v. Bull by affirming that legislative acts post-dating events cannot impair judicial rights. The Illinois Constitution protects the individual’s property rights against subsequent laws that affect vested rights.
In Illinois, the principle of ex post facto laws is incorporated under Article I, Section 12 of the Illinois Constitution, which prohibits retroactive legislation affecting civil rights.
The court affirmed that any statute which retroactively alters the legal consequences of past conduct is a violation of due process.
The ruling emphasized that legislation that significantly impairs vested rights contravenes both Illinois law and the precedent set by Calder v. Bull.
The court held that statutes enacted after a claimant's entitlement to benefits cannot retroactively alter the qualifications for those benefits.
Illinois law mirrors the federal standard established in Calder v. Bull, prohibiting ex post facto laws that would impair vested rights. However, Illinois has a more explicit constitutional provision emphasizing protections against civil rights violations.
Understanding Calder v. Bull's implications is crucial for the Illinois bar exam, especially in sections related to constitutional protections against retroactive laws.