Terry v. Ohio · ¶46

In the first place, if the frisk is justified in order to protect the officer during an encounter with a citizen, the officer must first have constitutional grounds to insist on an encounter, to make a forcible stop. Any person, including a policeman, is at liberty to avoid a person he considers dangerous. If and when a policeman has a right instead to disarm such a person for his own protection, he must first have a right not to avoid him but to be in his presence. That right must be more than the liberty (again, possessed by every citizen) to address questions to other persons, for ordinarily the person addressed has an equal right to ignore his interrogator and walk away; he certainly need not submit to a frisk for the questioner’s protection. I would make it perfectly clear that the right to frisk in this case depends upon the reasonableness of a forcible stop to investigate a…

U. S. Reports, bound volume
U. S. Reports, volume 392, at 1 (Library of Congress) · transcription: Caselaw Access Project
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