Illinois v. Wardlow, No. 98-1036
For Case Analysis: See Preview 96
Can police detain an individual solely because the police observed that upon spotting them the individual ran away?
Decision: Yes. The Court voted 5-4 that the defendants presence in an area of heavy narcotics trafficking, combined with his unprovoked flight upon noticing the police, provided the police with justifiable suspicion that he was involved in criminal activity and, therefore, in investigating further.
From the majority opinion by Chief Justice Rehnquist (joined by Justices OConnor, Scalia, Kennedy, and Thomas):
Headlong flightwherever it occursis the consummate act of evasion: it is not necessarily indicative of wrongdoing, but it is certainly suggestive of such.
Concurring in part and dissenting in part: Justice Stevens (joined by Justices Souter, Ginsburg, and Breyer).
Opinion and briefs: supreme.findlaw.com/Supreme_Court/docket/novdocket.html#98-1036