Katz v. United States · ¶42

Goldman v. United States, 316 U. S. 129, is an even clearer example of this Court’s traditional refusal to consider eavesdropping as being covered by the Fourth Amendment. There federal agents used a detectaphone, which was placed on the wall of an adjoining room, to listen to the conversation of a defendant carried on in his private office and intended to be confined within the four walls of the room. This Court, referring to Olmstead, found no Fourth Amendment violation.

U. S. Reports, bound volume
U. S. Reports, volume 389, at 347 (Library of Congress) · transcription: Caselaw Access Project
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