The case for this article is also about a search warrant.
> At some point thereafter, the officers obtained a search warrant for the contents of Valdez’s phone. But they were unable to access the phone’s contents because they could not crack his passcode. So a detective approached Valdez, informed him that he had a warrant for the contents of the cell phone, and asked Valdez to provide his passcode. Valdez refused. Without the passcode, the police were never able to unlock the phone to search its contents