The U.S. Supreme Court will soon determine whether a trained narcotics dog’s sniff at the front door of a home constitutes a Fourth Amendment search. The case, Florida v. Jardines, has privacy scholars abuzz because it presents two possible shifts in Fourth Amendment jurisprudence. First, the Court might expand the physical spaces rationale from Justice Scalia’s majority opinion in United States v. Jones. A favorable outcome for Mr. Jardines could reinforce that the home is a formidable privacy fortress, protecting all information from government detection unless that information is visible to the human eye. Alternatively, and more sensibly, the Court may choose to revisit its previous dog sniff cases, United States v. Place and Illinois v. Caballes. [...]







