https://www.theregister.co.uk/2018/10/27/florida_iphone_passcode/

Florida's Fourth District Court of Appeals has granted a petition by a defendant not to be forced to reveal his iPhone passcode and iTunes password, based on the US Fifth Amendment's protection against self-incrimination.

The defendant, a minor referred to as G.A.Q.L in his petition against the State of Florida, was involved in a car crash in which one of the passengers died. Police investigating the accident asked a lower court to force the defendant to reveal his iPhone passcode and iTunes password, both of which were needed to search the device because of a pending iOS software update. The lower court granted the state's request and ordered the minor to comply.