The US Supreme Court issued a key ruling in favor of Fourth Amendment rights in the digital age June 25, finding unanimously that police in most cases need a warrant before searching the cellphone or personal electronic device of an arrestee. Chief Justice John Roberts firmly rejected arguments that searches of digital devices are comparable to searches police routinely carry out for contraband after making an arrest. In the cases of Riley v. California and United States v. Wurie (argued separetly, but decided together), Roberts wrote: "Modern cell phones, as a category, implicate privacy concerns far beyond those implicated by the search of a cigarette pack, a wallet, or a purse... The fact that technology now allows an individual to carry such information in his hand does not make the information any less worthy of the protection for which the Founders fought. Our answer to the question of what police must do before searching a cell phone seized incident to an arrest is accordingly simple—get a warrant."