Almost never. Under Riley v. California, police generally need a warrant to search the contents of a cell phone, even during an arrest. Rhode Island courts follow that rule closely. There are narrow exceptions, including consent, genuine emergencies, and limited border searches, but the default is clear: no warrant, no search. Warrants must describe the device and the data to be seized with particularity. General warrants authorizing officers to review every file on a device are challenged routinely, and successful Fourth Amendment motions can exclude critical evidence and collapse the case. If officers asked you to "unlock" your phone or if they swept through cloud accounts without a warrant, tell your Rhode Island computer crimes lawyer immediately. Suppression is one of the most powerful tools in this practice area, and Bank & Munns files those motions aggressively when the facts support them.