The United States Supreme Court has accepted a new case that implicates cell-phone location privacy. The case of Carpenter v. United States was decided by the Sixth Circuit and now the Supreme Court will issue a decision in the future as to whether the lower court’s decision was correct. The main issue in this case is that the court will be deciding whether or not the warrantless search and seizure of historical cell phone records revealing the location and movements of a cell phone user over the course of a 127-day period is permitted by the Fourth Amendment. In general, the Fourth Amendment protects against unreasonable searches and seizures. It also implicates the laws regarding search warrants, wiretaps, other forms of surveillance and is central to privacy laws.
What are the case facts?
In 2011, four men were arrested because they were suspected of committing a string of armed robberies at T-Mobile and Radio Shack in the Detroit area. One of the four men confessed to the crimes and told the police that a shifting group of 15 other men served as getaway drivers and lookouts. The one man who confessed gave his phone number along with the phone numbers of some of the other participants to the FBI. The FBI then reviewed the call records of the man who confessed and were able to identify the phone numbers of others that he had called around the time of the robberies.