Federal agents acted in good faith in relying on court orders and not a warrant to obtain cell phone tower data associated with the target of a drug trafficking probe, a federal judge in Washington said in a ruling that marked a win for the Justice Department.

U.S. District Judge Ellen Segal Huvelle in Washington skirted issuing a ruling on the underlying debate playing out in courts across the country: whether authorities should be required to get a warrant to access location information that mobile phones transmit to towers.