In an emphatic defense of privacy in the digital age, a unanimous Supreme Court ruled Wednesday that police generally may not search the cellphones of people they arrest without first getting search warrants.
Cellphones are unlike anything else police may find on someone they arrest, Chief Justice John Roberts wrote for the court. They are “not just another technological convenience,” he said, but ubiquitous, increasingly powerful computers that contain vast quantities of personal, sensitive information.
“With all they contain and all they may reveal, they hold for many Americans the privacies of life,” Roberts declared. So the message to police about what they should do before rummaging through a cellphone’s contents following an arrest is simple: “Get a warrant.”
The chief justice acknowledged that barring searches would affect law enforcement, but he said: “Privacy comes at a cost.”
By ruling as it did, the court chose not to extend earlier decisions from the 1970s