SAN FRANCISCO — The U.S. Supreme Court’s decision to take up a potentially groundbreaking Fourth Amendment case over law enforcement’s access to cellphone records has put the brakes on a case raising similar issues at the U.S. Court of Appeals for the Ninth Circuit.

The Supreme Court granted cert earlier this month in United States v. Carpenter, a case delving into whether law enforcement must obtain a warrant in order to gain access to historical cellphone data used to track a suspect’s location.