City of Indianapolis v. Edmond, 531 U.S. 32 (2000),[1] was a United States Supreme Court case in which the Court held, 6–3, that police may not conduct vehicle searches, specifically ones involving drug-sniffing police dogs, at a checkpoint or roadblock without reasonable suspicion.
[2] In the case, the Indianapolis Police Department was conducting warrantless searches of vehicles, without individualized suspicion, for the purpose of "general crime control".
The location of these roadblocks were chosen weeks in advance based on an area's crime rate and the road's general traffic flow.
"[6] Between August and November, the police stopped 1,161 motorists, and arrested 104, of which 55 were charged with drug-related crimes.
[5] James Edmond and Joell Palmer were both stopped at one of these checkpoints, and filed a class action lawsuit against the city, representing "any and all persons driving vehicles who have been stopped [...] at the drug interdiction roadblocks maintained by the City of Indianapolis.