"Don't worry, we'll keep you imprisoned until you remember or manage to brute force it. We also don't care what you told your doctor..."

See how power works?

The anti-terrorism act used in this case allows detention of no more than 1 hour, or no more than 6 hours under certain conditions. Arrest involves other charges so what you described could happen, but not without turns.

Having withheld evidence is the crime, they will be able to prove you did that. Even if you were otherwise innocent.

How could they tell if you withheld anything or genuinely forgot? It's a stressful situation. I'm not sure if I'll remember even my mother's name in such situation.

> How could they tell if you withheld anything or genuinely forgot? It's a stressful situation. I'm not sure if I'll remember even my mother's name in such situation.

You are not giving them password so you are withholding it from them. Law doesn't have exemption for whatever excuse you are trying to use. So it's jail time for you. There is no way to prove you forgot it. And this law logic is "guilty until proven innocent".

What bothers me even worse is situation when you think you knew password but it didn't worked. Had similar situation with LastPass, I was entering one password and no matter what it failed to open vault. Tried different spellings nothing, only after a month of frantic thinking I entered correct one. Most likely I would be accused of lying to cops

As I said in another comment - even though obviously there is no objective way to prove it, like many other things in the justice system it's about what the judge/jury will believe. If they pull up logs that show you've used your password just before your interrogation then you can bet you'll be found guilty even if you really forgot the password.

Those are the kinds of cases that should be handled through jury nullification - too bad it's a crime to explain that right and how it should be used to jurors.