The Supreme Court recently handed down a decision that has been considered a win for those accused of crimes. In Carpenter v. United States, the high court ruled that in order for a government entity such as the police to get cell phone location records a warrant is required in most cases.
Prior to this ruling, the government could review any citizen’s cell phone location records simply by stating to the cell phone carrier that the information was needed for an investigation.
The information at issue is data kept by cell phone companies that can prove where the cell phone was at any given time. Phone companies can tell where a cell phone is by using GPS data or cell site location information (CSLI). CSLI can only record the general area a cell phone is in based on which cell towers are being used by the phone.
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