https://phys.org/news/2019-01-people-facial-recognition-fingerprints-federal.html

Judge Kandis Westmore took no issue with authorities' request for a warrant to search an Oakland home associated with the two men, and possibly seize cell phones and computers.

"The Government, however, also seeks the authority to compel any individual present at the time of the search to press a finger (including a thumb) or utilize other biometric features, such as facial or iris recognition, for the purposes of unlocking the digital devices found in order to permit a search of the contents as authorized by the search warrant," Westmore wrote in her ruling. But the judge said that would be unconstitutional.