Cardwell v. Lewis
The Supreme Court ruled that police did not violate the Fourth Amendment when they towed a murder suspect's car from a public parking lot and, without a warrant, scraped paint from its exterior and examined a tire tread.
The Court reasoned that examining only the outside of a car parked in public involves little privacy interest, and that once police had probable cause the car held evidence of the crime, holding it and inspecting it later was as reasonable as searching it on the spot.
How it got here: A federal district court granted habeas relief finding the car search unconstitutional, the Sixth Circuit affirmed, and the state sought Supreme Court review.
The Case in Depth
What happened
A man was convicted of murdering an accountant who had been reviewing his business records. Investigators suspected his car had been used to push the victim's car over an embankment, based on paint scrapings, tire tracks, and body-shop repairs done right after the killing. When the suspect came in for police questioning, he parked his car in a public commercial lot; after his arrest, police towed the car and examined its exterior.
The question before the Court
Could police, without a warrant, examine and take paint samples and tire impressions from a murder suspect's car after towing it from a public parking lot?
Why it matters
The decision lets police seize and later inspect the outside of a car in a public place without first getting a warrant, as long as they have probable cause it was used in a crime. That gives investigators more flexibility in murder and other criminal cases involving vehicles, while leaving stronger protections in place for a car's interior and personal belongings inside it.
What changes now
This is a final merits decision reversing the Court of Appeals, which had granted habeas relief and ordered a new trial or release. With the reversal, the state court conviction stands and the paint and tire evidence remains admissible. The case does not change the rules for searching a car's interior or contents, which the Court noted receive stronger Fourth Amendment protection than the exterior examination at issue here.
What this does not decide
The Court expressly limited its holding to the exterior of the car — paint scrapings and a tire on a mounted wheel — and said nothing from the vehicle's interior or personal effects was searched or used as evidence. It also did not address Justice Powell's separate argument about limiting habeas review of state Fourth Amendment claims, since that issue was not raised by the parties.
Concurrences and dissents
How the Justices voted
Majority (1). Justice Blackmun (author).
Separate writings (1). Justice Powell (author of a concurrence).
Dissent (1). Justice Stewart (author).
Concurrence — Justice Powell
Justice Powell agreed with reversing the lower court but on a different ground entirely: he argued that federal habeas courts should not even reconsider a state prisoner's Fourth Amendment claim if the prisoner already had a full and fair chance to litigate it in state court. Since Lewis had that opportunity, Powell would deny relief without reaching the search-and-seizure merits. Read the full concurrence →
Dissent — Justice Stewart
Justice Stewart argued that a warrantless seizure of a car occurred here just as much as any other seizure, and that none of the recognized exceptions to the warrant requirement applied because the suspect and his car keys were already in police custody, eliminating any real risk the car would be moved or evidence destroyed. He would have affirmed the Court of Appeals and excluded the evidence. Read the full dissent →
How the Court got there
The legal reasoning, step by step
- The Court framed the question as whether examining only the exterior of a car — paint scrapings and a tire tread on a mounted wheel — invades the kind of privacy interest that the Fourth Amendment's warrant requirement is meant to protect, distinguishing this from searches of a car's interior or personal effects.
- Drawing on earlier car cases going back to Carroll v. United States, the Court explained that vehicles get less warrant protection than homes both because they can quickly be moved and because a car's exterior and contents are routinely exposed to public view while traveling public roads.
- Because nothing from the car's interior was searched or used as evidence, and the exterior was already exposed to public view in a public parking lot, the Court concluded there was no meaningful expectation of privacy for the police to invade, calling any privacy interest 'abstract and theoretical.'
- Having found the exterior examination itself reasonable given probable cause, the Court then asked whether towing the car to a police lot before that examination — rather than examining it on the spot — created a separate constitutional problem.
- Relying on Chambers v. Maroney, the Court reasoned that holding a car until a warrant could be obtained is no more intrusive, for constitutional purposes, than searching it immediately without a warrant, so long as probable cause and some level of urgency exist; the Court found that urgency here because the suspect's family or attorney could have removed the car after his arrest.
- The Court distinguished Coolidge v. New Hampshire because that car was seized from a private driveway requiring entry onto private property, whereas Lewis's car was taken from a public lot where access was not restricted, so the seizure itself was not unreasonable.
Doctrinal impact
Cases affected by this decision
Reaffirms Chambers v. Maroney (399 U. S. 42)
The Court relied on this case to hold that holding a car for later search is as reasonable as an immediate warrantless search.
Distinguishes Coolidge v. New Hampshire (403 U. S. 443)
The Court said this case did not control because that car sat on private property, not a public lot.