quality:corruption, linguistic:translation
Opinion of the court

The majority opinion was written by Justice Potter Stewart. The Court began by dismissing the parties' characterization of the case in terms of a traditional trespass -based analysis that hinged on, first, whether the public telephone booth Katz had used was a "constitutionally protected area" where he had a "right of privacy"; and second, on whether the FBI had "physically penetrated" the protected area and thus violated the Fourth Amendment. Instead, the Court viewed the situation through the lens of how Katz's use of the phone booth would be perceived by himself and then objectively by others. In an oft-cited passage, Stewart wrote: