the cops can't force you to decrypt an encrypted device because of your 5th Amendment rights I don't believe this is quite correct. AIUI, they cannot demand t

the cops can't force you to decrypt an encrypted device because of your 5th Amendment rights I don't believe this is quite correct. AIUI, they cannot demand that you hand over the password as such, because that is tangential to the case - it's a third piece of information that has no bearing. But they can sit your down and tell you that you must unlock it for them - enter the password yourself - under penalty of the law.