In a case of child pornography the suspect was not required to turn over his 64 character password. The lower court wanted to use the “forgone conclusion exception” to make him divulge the password. The forgone conclusion exception forced suspects to hand over paper documents and hadn’t been used in the case of a password yet. The PA supreme court ruled that it couldn’t be used because the 5th amendment protection of self-incrimination. Overall a very interesting read and has set an interesting precedent.
https://arstechnica.com/tech-policy/2019/11/police-cant-force-child-porn-suspect-to-reveal-his-password-court-rules/