Nothing new here.

Not surrendering a password is just the same as not surrendering the keys to a safe that holds evidence or not revealing where some documents/loot are hidden.

Surely there is suficient pre-computer-age precedence to be able to make a rational decision.

There's far too much knee-jerk that computers/internet change everything legally/morally etc, bit in truth they do not. This silliness is found in copyright, unauthorised access, privacy etc.

Caption is Big Brother searching your ccoat pockets for evidence.