Whren v. United States
Citation and Court
517 U.S. 806 (1996) — Supreme Court of the United States
Facts
Plainclothes vice officers in an unmarked vehicle became suspicious of a truck stopped at an intersection for an unusually long time. After the truck turned without signaling and sped off, officers stopped it for traffic violations. Upon approaching, they observed bags of crack cocaine in Whren’s hands. Whren argued the stop was a pretext to investigate drug activity without adequate justification.
Issue
Does the Fourth Amendment’s reasonableness requirement prohibit a traffic stop whenever the officer’s actual subjective motive is to investigate other criminal activity, even if probable cause for a traffic violation exists?
Holding
No; a traffic stop is constitutional as long as the officer has probable cause to believe a traffic violation occurred, regardless of the officer’s subjective intentions.
Rule / Doctrine
Pretext stops doctrine: the Fourth Amendment’s reasonableness inquiry is objective. An officer’s subjective motivations are irrelevant so long as probable cause (or reasonable suspicion for a Terry stop) for the observed violation objectively exists.
Significance
Whren settled a long-standing circuit split and effectively immunized pretextual traffic stops from Fourth Amendment challenge. It has broad practical significance because traffic codes are so detailed that nearly any driver can be stopped at any time. Critics argue it enables racially motivated policing; defenders note the objective standard is more administrable.