An anonymous reader shares a report: The U.S. Supreme Court on Monday agreed to hear a major case on privacy rights in the digital age that will determine whether police officers need warrants to access past cellphone location information kept by wireless carriers. The justices agreed to hear an appeal brought by a man who was arrested in 2011 as part of an investigation into a string of armed robberies at Radio Shack and T-Mobile stores in the Detroit area over the preceding months. Police helped establish that the man, Timothy Carpenter, was near the scene of the crimes by securing cell site location information from his cellphone carrier. At issue is whether failing to obtain a warrant violates a defendant’s right to be free from unreasonable searches and seizures under the U.S. Constitution’s Fourth Amendment. The information that law enforcement agencies can obtain from wireless carriers shows which local cellphone towers users connect to at the time they make calls. Police can use historical data to determine if a suspect was in the vicinity of a crime scene or real-time data to track a suspect.
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