Because the Constitution is the supreme law of the land (Article VI), states are not at liberty to empower their officers to conduct seizures of property that may be unreasonable under the Fourth Amendment. In Sibron v. New York, the Supreme Court considered the conflict between a state statute that purported to authorize certain seizures and the overriding command of the Fourth Amendment that all seizures be reasonable. Finding the seizure in that case unreasonable, the court said, “[A state] may not authorize police conduct which trenches upon Fourth Amendment rights. The question is not whether the search or seizure was authorized by state law. The question is rather whether the search or seizure was reasonable under the Fourth Amendment.”
The federal appellate courts and many state courts have drawn the same distinction, finding that vehicles impounded under state or local laws or policies were nevertheless unreasonable under the Fourth Amendment. In U.S. v. Squires, for example, New York City police impounded a car from a parking lot “for safekeeping” after arresting its occupant on a warrant. The Second Circuit Court of Appeals held that this seizure was unreasonable under the Fourth Amendment because the car could have been left lawfully parked in the parking lot, and “the officers did not have a reasonable basis for concluding that it was necessary to take the Cadillac to the police station in order to protect it.”
In U.S. v. Duguay, a drug suspect was a passenger in a car that was driven into a parking lot and parked. After he was arrested, the car was impounded and inventoried and drugs were found. The Illinois officers testified that it was their standard policy to impound all vehicles “for safekeeping” when an occupant had been arrested. The court found the impound to be an unreasonable seizure and suppressed the resulting evidence: “The decision to impound an automobile is only valid if the arrestee is otherwise unable to provide for the speedy and efficient removal of the car from public thoroughfares or parking lots.” Finding that in this instance two unarrested associates who were present could have taken custody of the car, the court found the impound to be in violation of the Fourth Amendment.
The Ninth Circuit Court of Appeals considered a civil suit arising from an Oregon officer’s impound of a car after citing the driver and passenger for traffic violations in Miranda v. City of Cornelius. Jorge Miranda, a licensed driver, was trying to teach his wife to drive. An officer saw errant driving and signaled the driver to stop. Mrs. Miranda pulled the car into the driveway of their home and stopped. Both occupants were cited and the officer impounded the car under local and state statutes authorizing an impound when a vehicle was driven by an unlicensed driver. The Mirandas brought a federal civil rights suit for violation of their Fourth Amendment rights, and the Ninth Circuit agreed that the impound was an unreasonable seizure.
Although the city argued that the impound was lawful because it was authorized by local laws, the court said, “The decision to impound pursuant to the authority of a city ordinance or state statute does not, in and of itself, determine the reasonableness of the seizure under the Fourth Amendment.” Noting that the Mirandas’ car was lawfully parked in their own driveway the court ruled the seizure unreasonable.