United States v. Matlock
The Supreme Court ruled that a live-in girlfriend's voluntary consent to search a bedroom she shared with the defendant could make evidence found there admissible against him, even though he never personally agreed to the search.
The Court also held that the trial judge had wrongly excluded her out-of-court statements about their living arrangement, because hearsay can be considered at a pretrial suppression hearing even though it usually can't be used at trial itself.
“the consent of one who possesses common authority over premises or effects is valid as against the absent, nonconsenting person with whom that authority is shared”
The Court's core rule on when a co-occupant's consent binds an absent resident.
How it got here: The District Court suppressed the cash after excluding hearsay evidence of the couple's living arrangement; the Seventh Circuit affirmed; the government sought Supreme Court review.
The Case in Depth
What happened
Federal agents investigating a bank robbery arrested William Matlock in the yard of a Wisconsin house where he lived. Without asking him, they got permission from Gayle Graff, another resident, to search the house, including a bedroom she said she shared with Matlock. There they found nearly $5,000 in cash in a diaper bag, which the government wanted to use as evidence at his trial.
The question before the Court
When police searched a house with a woman's permission, could evidence found in a bedroom she said she shared with her boyfriend be used against him at his robbery trial?
Why it matters
Police who search homes shared by multiple people can rely on any resident with genuine shared control over the space to give valid consent, without needing the absent occupant's permission. The ruling also lets judges weigh hearsay evidence, including statements against a witness's own interest, when deciding at a pretrial hearing whether a search was lawful.
What changes now
The case goes back to the Court of Appeals, which is directed to send it back to the District Court to reconsider whether Gayle Graff had sufficient shared authority over the bedroom, this time considering the previously excluded hearsay evidence. This is a final ruling on the legal standard, but the ultimate factual question of whether the search was valid remains to be resolved on remand.
What this does not decide
The Court did not decide whether Gayle Graff actually had sufficient authority to consent to the search — that factual question goes back to the District Court. It also did not reach the government's separate argument that officers' reasonable belief about her authority alone would be enough.
Concurrences and dissents
Dissent — Justice Douglas
“It is inconceivable that a search conducted without a warrant can give more authority than a search conducted with a warrant.”Douglas's objection that the majority let consent substitute for the warrant the Fourth Amendment requires.
Justice Douglas argued the search was unconstitutional regardless of Graff's authority to consent, because officers had ample time and opportunity to get a warrant but never tried. He traced the Fourth Amendment's history to argue the Framers meant to strengthen, not create exceptions to, the warrant requirement, and would have held the warrantless search per se unreasonable.
Dissent — Justice Brennan
Justice Brennan, joined by Justice Marshall, would have gone further than the majority's remand instructions. He argued the lower court must also determine whether Graff knew she had the right to refuse consent, reasoning that a person cannot meaningfully waive a constitutional protection she doesn't know exists.
How the Court got there
The legal reasoning, step by step
- The Court applied the principle that a warrantless search is valid if someone with 'common authority' over the property voluntarily consents. This authority doesn't come from formal property ownership but from mutual use and shared access to the space by the people living there.
- Because a person who shares a room assumes the risk that a co-occupant might let others look inside, the voluntary consent of one occupant with genuine shared control can make a search valid even against an absent, non-consenting occupant.
- The Court then turned to whether hearsay statements about Gayle Graff's living arrangement with the defendant could be considered at the pretrial hearing on whether to suppress the evidence. It held that the strict evidence rules used at a criminal trial don't fully apply at a hearing where a judge alone decides whether evidence is admissible.
- Because Graff's statements were consistent with each other, corroborated by independent evidence, and went against her own legal interest under a state law making unmarried cohabitation a crime, the trial judge should have considered them rather than excluding them as hearsay.
- With that evidence properly in the mix, the record appeared sufficient to show Graff had the shared authority needed to consent, but the Court left the final factual call for the lower court to make on remand rather than deciding it itself.
Doctrinal impact
Cases affected by this decision
Reaffirms Frazier v. Cupp (394 U. S. 731)
Relied on again to confirm that shared use of property lets one user validly consent to its search.
Reaffirms Schneckloth v. Bustamonte (412 U. S. 218)
Reaffirmed that consent searches are valid without requiring knowledge of the right to refuse.