Tag Archives: third party doctrine

US Supreme Court Evaluates Privacy of Cell Phone Data

Last Thursday, the United States Supreme Court heard arguments in Carpenter v. United States.  At issue was whether the FBI violated the Fourth Amendment when it obtained the cellphone location records of Timothy Carpenter.  The FBI used these records to establish Mr. Carpenter’s whereabouts during time periods in which certain armed robberies occurred.  The government … Continue Reading

Northern District of California Requires A Warrant to Access Cellphone Geographic Information

We previously reported that government access to cellphone geographic information or CSLI without a warrant has become a vigorous debate between the government, defense attorneys, and the federal bench. In a lengthy opinion, Judge Lucy Koh of the Northern District of California joined those who held that the Fourth Amendment applies to CSLI. Prior to … Continue Reading
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