Whether officers executing a valid warrant to search a residence for contraband may detain an occupant of the premises during the search without separate probable cause to arrest that occupant.
Holding
Yes. A valid warrant to search a residence for contraband implicitly authorizes officers to detain the residence's occupants while they conduct a proper search.
Reasoning
The Court first treated Summers's detention as a Fourth Amendment seizure: he was not free to leave, even though he was not formally arrested until later. Ordinarily, a seizure with the essential features of an arrest requires probable cause. But the Court had recognized that some less intrusive seizures may be reasonable when substantial law-enforcement interests justify them.
This detention was substantially less intrusive than the stationhouse custody at issue in Dunaway v. New York. It occurred at Summers's own home, during a judicially authorized search of that home, and did not entail transportation, custodial interrogation, or the additional public stigma of a compelled trip to the police station. The detention also ordinarily would last only as long as the search, and the information officers sought would come from the search rather than from questioning the detained occupant.
Several law-enforcement interests supported a categorical authority to detain occupants. Detention prevents flight if the search produces incriminating evidence, reduces risks to officers and residents by allowing officers to maintain control during a potentially volatile narcotics search, and can facilitate an orderly search because occupants may open locked doors or containers rather than force officers to damage property or delay the search.
The warrant itself supplied an objective and individualized basis for the detention. A neutral magistrate had found probable cause to believe that criminal activity involving contraband was occurring in the house. An occupant's connection to that house gave officers a clear basis to detain the person without requiring officers to make an ad hoc assessment of suspicion at the scene.
Summers's position on the front steps did not change the result. The Court regarded his seizure outside the house as no more intrusive than detaining residents whom officers encountered inside. The holding was limited to occupants detained during a proper search for contraband pursuant to a valid warrant; the Court did not decide whether the same authority applies to warrants seeking only evidence, and it left open whether unusual circumstances or an unduly prolonged detention could alter the analysis.