Opinion of the Court
Penal Code Ann. §246 (2008) with § 186.22(b)(4)(B) (2014). Prior to trial, Riley moved to suppress all evidence that the police had obtained from his cell phone. He contended that the searches of his phone violated the Fourth Amendment, because they had been performed without a warrant and were not otherwise justified by exigent circumstances. The trial court rejected that argument. App. in No. 13-132, at 24, 26. At Riley's trial, police officers testified about the photographs and videos found on the phone, and some of the photographs were admitted into evidence. Riley was convicted on all three counts and received an enhanced sentence of 15 years to life in prison.
The California Court of Appeal affirmed. No. D059840 (Cal. App., Feb. 8, 2013), App. to Pet. for Cert, in No. 13-132, pp. la-23a. The court relied on the California Supreme Court's decision in People v. Diaz, 51 Cal. 4th 84, 244 P. 3d 501 (2011), which held that the Fourth Amendment permits a warrantless search of cell phone data incident to an arrest, so long as the cell phone was immediately associated with the arrestee's person. See id., at 93, 244 P. 3d, at 505-506.
The California Supreme Court denied Riley's petition for review, App. to Pet. for Cert, in No. 13-132, at 24a, and we granted certiorari, 571 U. S. ____(2014).
B
In the second case, a police officer performing routine surveillance observed respondent Brima Wurie make an apparent drug sale from a car. Officers subsequently arrested Wurie and took him to the police station. At the station, the officers seized two cell phones from Wurie's person. The one at issue here was a "flip phone," a kind of phone that is flipped open for use and that generally has a smaller range of features than a smart phone. Five to ten minutes after arriving at the station, the officers noticed that the phone was repeatedly receiving calls from a
