Scalia dissented in Navarette v. California, 134 S. Ct. 1683 (2014). In Navarette the court held that the Fourth Amendment tolerated a warrantless traffic stop where the officers said they stopped the truck because it “matched the description of a vehicle that an anonymous 911 caller reported as having run her off the road” and “as the two officers approached the truck, they smelled marijuana.” The majority concluded “under the totality of the circumstances, the officer had reasonable suspicion that the driver was intoxicated.” In a powerful dissent, Scalia referred to the logic of the court’s opinion as a “freedom-destroying cocktail” that provided law enforcement with too much leeway in stopping motorists based on “anonymous claims.”
Scalia also dissented from the Court’s decision in Maryland v. King, 569 U.S. 435 (2013). In King, the Court denied a Fourth Amendment challenge to the taking of a DNA sample from inside the mouth of a person as “part of a routine booking procedure for serious offenses.” Scalia wrote, “No matter the degree of invasiveness, suspicionless searches are never allowed if their principal end is ordinary crime-solving. … That prohibition is categorical and without exception; it lies at the very heart of the Fourth Amendment.” Scalia continued: “Today’s judgment will, to be sure, have the beneficial effect of solving more crimes; then again, so would the taking of DNA samples from anyone who flies on an airplane …, applies for a driver’s license, or attends a public school. Perhaps the construction of such a genetic panopticon is wise. But I doubt that the proud men who wrote the charter of our liberties would have been so eager to open their mouths for royal inspection.”