Warden, Maryland Penitentiary v. Hayden
The Court upheld the warrantless search of a robbery suspect's house during 'hot pursuit,' and ruled that clothing found there and used to identify him could be introduced at trial even though it had only evidentiary value.
In doing so, the Court threw out the long-standing 'mere evidence' rule, which had barred police from seizing items that were neither stolen property, weapons, nor tools of the crime — a change that broadened what officers could lawfully take during a search.
How it got here: After state courts denied relief, a federal district court denied habeas relief, but the Fourth Circuit reversed, ruling the clothing was inadmissible 'mere evidence'; the State sought Supreme Court review.
The Case in Depth
What happened
An armed man robbed a Baltimore cab company of $363 and fled on foot. Cab drivers tracked him to a house and radioed police, who arrived within minutes and searched the home for the suspect. They found the man, weapons, ammunition, and clothing matching witness descriptions. The clothing was later used as evidence to convict him of armed robbery in Maryland state court.
The question before the Court
After police chased an armed robbery suspect into his house and searched it for him and his gun, could they also seize and use his clothing as evidence, even though the clothing itself wasn't a weapon or stolen loot?
Why it matters
Police nationwide gained clear authority to seize purely identifying or informational evidence — not just weapons, loot, or contraband — as long as they have probable cause linking it to a crime. This affects how far officers can go during searches of homes, offices, and vehicles, and it removed a legal shield that previously kept certain personal items, like papers or clothing, out of evidence.
What changes now
This is a final merits decision reversing the Fourth Circuit, meaning the clothing evidence may be used and the conviction stands. The ruling permanently eliminated the 'mere evidence' limitation as a constitutional rule, so lower courts and police departments going forward can rely on probable cause alone to seize identifying or informational evidence, without needing to show the item is a weapon, loot, or contraband.
What this does not decide
The Court did not decide whether there might be some categories of evidence — for instance certain deeply private papers — so sensitive that seizing them would still be unreasonable under the Fourth Amendment regardless of probable cause; it left that broader question open for future cases.
Concurrences and dissents
Concurrence — Justice Fortas
Justice Fortas agreed the clothing was properly admitted but objected to the majority's sweeping rejection of the 'mere evidence' rule as unnecessary. He would have upheld the seizure only on the narrower ground that identifying clothing found during 'hot pursuit' fits within that specific exception, without discarding the broader rule limiting what can be seized as evidence.
Dissent — Justice Douglas
“That which is taken from a person without his consent and used as testimonial evidence violates the Fifth Amendment.”Douglas's argument that using the seized clothing as evidence was constitutionally forbidden.
Justice Douglas argued the Fourth Amendment has always protected two distinct zones of privacy, one of which bars searches conducted solely to gather evidence, tracing this principle to Entick v. Carrington and Boyd v. United States. He would have held that using the clothing as evidence violated both the Fourth and Fifth Amendments, and warned that abandoning the 'mere evidence' rule strips away a core historical safeguard against government intrusion into personal effects.
How the Court got there
The legal reasoning, step by step
- The Court first evaluated the warrantless entry and search under the doctrine that police may act without a warrant when 'the exigencies of the situation' make it necessary — here, chasing an armed suspect into a house minutes after a robbery, where any delay could endanger officers or bystanders.
- Applying that standard, the Court found the scope of the search could reasonably extend to looking for the suspect and any weapons he might use against police, since speed and safety were paramount and only a full search of the house could confirm no other armed person or hidden weapon remained.
- The Court then turned to whether clothing found in a washing machine could be introduced even though it had no function as a weapon, contraband, or stolen loot, and rejected the older rule that such 'mere evidence' could never be validly seized.
- The Court reasoned that the Fourth Amendment's text protects privacy against unreasonable searches generally, without distinguishing between evidence-only items and instrumentalities of crime, and that a valid warrant or exigency-based search is equally reasonable whichever category the seized item falls into.
- Because the clothing was not testimonial or communicative, its use did not implicate the privilege against self-incrimination, and because it was probably connected to identifying the robber, there was a sufficient link between the item and the crime to justify its seizure and use as evidence.
Doctrinal impact
Cases affected by this decision
Overrules Gouled v. United States (255 U.S. 298)
The rule barring seizure of purely evidentiary items, first established here, was rejected as no longer valid.
Distinguishes Harris v. United States (331 U.S. 145)
The Court said it did not rely on this case because it involved a search of someone already under arrest, unlike this case.