The horrible bastion of despotism that is China-run Hong Kong has now caught up to the rule of law utopias of enlightened thought in the US and UK.
in china was never a problem for police to detain you for any reason (or no reason) but HK has a different legal system
>in the US and UK
???
Of all the issues with the US justice system, being compelled to disclose passwords isn't one of them. It is an issue for UK, though.