Hill v. California

Background

A residence was robbed and two suspects were arrested the next day. Those suspects implicated Archie Hill and gave police Hill’s address. Officers went to Hill’s apartment, encountered a man who said he was “Miller,” and — without arrest or search warrants — arrested him after believing he was Hill and searched the apartment, seizing clothes, weapons, and two diary pages later used at trial.

Reasoning

The Court examined whether the arrest and search were reasonable. It found the police had probable cause to arrest Hill and reasonably believed the man at the door was Hill. The Court held that when officers have probable cause about one person and reasonably mistake another for that person, the mistaken arrest and a search incident to that arrest are lawful. The Court also declined to decide a separate Fifth Amendment claim about the diary because that issue had not been raised earlier in state court.

Real world impact

The ruling means evidence seized after a reasonable mistake about someone’s identity can remain usable in court. It also says searches done before a later rule (Chimel) took effect are not subject to that new rule retroactively. People arrested after an identity mistake and the officers who arrest them are directly affected, as are prosecutors relying on such evidence.

Dissents or concurrances

A Justice joined by another disagreed on applying the Chimel limits and would have reversed because he believed the apartment search exceeded the narrow scope allowed for searches incident to arrest.