Riley v. California

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Questions

1. Was the evidence admitted at trial from Riley's cell phone discovered through a search that violated his Fourth Amendment right to be free from unreasonable searches?

Conclusions

1. Yes. Chief Justice John G. Roberts, Jr. wrote the opinion for the unanimous Court. The Court held that the warrantless search exception following an arrest exists for the purposes of protecting officer safety and preserving evidence, neither of which is at issue in the search of digital data. The digital data cannot be used as a weapon to harm an arresting officer, and police officers have the ability to preserve evidence while awaiting a warrant by disconnecting the phone from the network and placing the phone in a "Faraday bag." The Court characterized cell phones as minicomputers filled with massive amounts of private information, which distinguished them from the traditional items that can be seized from an arrestee's person, such as a wallet. The Court also held that information accessible via the phone but stored using "cloud computing" is not even "on the arrestee's person." Nonetheless, the Court held that some warrantless searches of cell phones might be permitted in an emergency: when the government's interests are so compelling that a search would be reasonable.

   Justice Samuel A. Alito, Jr. wrote an opinion concurring in part and concurring in the judgment in which he expressed doubt that the warrantless search exception following an arrest exists for the sole or primary purposes of protecting officer safety and preserving evidence. In light of the privacy interests at stake, however, he agreed that the majority's conclusion was the best solution. Justice Alito also suggested that the legislature enact laws that draw reasonable distinctions regarding when and what information within a phone can be reasonably searched following an arrest.

   Learn more about the Roberts Court and the Fourth Amendment in Shifting Scales, a nonpartisan Oyez resource.