Florida v. Jardines, No. 11-564; U.S. Supreme Court; opinion by Scalia, J.; concurrence by Kagan, J.; dissent by Alito, J.; decided March 26, 2013. On certiorari to the Supreme Court of Florida.

Police took a drug-sniffing dog to Jardines’ front porch, where the dog gave a positive alert for narcotics. Based on the alert, the officers obtained a warrant for a search, which revealed marijuana plants; Jardines was charged with trafficking in cannabis. The Supreme Court of Florida approved the trial court’s decision to suppress the evidence, holding that the officers had engaged in a Fourth Amendment search unsupported by probable cause.