Illinois v. Krull
Headline: Court allows police to use evidence gathered under a later-invalidated state inspection law when officers reasonably relied on that law, reversing Illinois court and limiting suppression of administrative-search evidence.
Holding: The Court held that evidence need not be excluded when a police officer reasonably relied on a state statute later declared unconstitutional, finding the officer acted in objective good faith and reversing the Illinois court.
- Permits courts to admit evidence when officers reasonably relied on later-invalidated statutes.
- Limits defendants’ ability to suppress evidence from administrative inspections.
- Affects businesses in regulated industries subject to warrantless inspections.
Summary
Background
The dispute involves a Chicago automobile wrecking yard and a state police detective who inspected the yard under an Illinois law that authorized warrantless administrative inspections of licensed vehicle dealers. During a 1981 inspection the officer found and seized stolen cars. A federal court had declared the statute unconstitutional, and the state trial court suppressed the seized evidence. The Illinois Supreme Court affirmed suppression and rejected the idea that the officer's reliance on the statute could save the evidence.
Reasoning
The Supreme Court asked whether the good-faith rule from United States v. Leon — which allows evidence seized under a warrant later found defective when the officer reasonably relied on the warrant — should also apply when an officer reasonably relies on a statute later declared unconstitutional. Writing for the majority, Justice Blackmun held that the exclusionary rule's main goal is to deter police misconduct, not to punish legislatures. The Court found no strong reason to expect deterrence from excluding evidence here, concluded the detective acted in objective good faith given the regulatory context, and ruled the good-faith exception applies, with limits (for laws so blatantly unconstitutional or where the legislature abandons its duty).
Real world impact
The decision makes it easier for prosecutors to use evidence seized under regulatory inspection laws later judged unconstitutional, affects licensed businesses in heavily regulated industries, and narrows when defendants can obtain suppression of evidence.
Dissents or concurrances
Justice O'Connor (joined by three others) dissented, arguing history and precedent support suppressing evidence from unconstitutional statutes and warning this ruling creates a dangerous grace period for unlawful legislative searches.
Opinions in this case:
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