Comment by wat10000
3 hours ago
It's best to do that for things they have the right to do. Trying to resist being questioned or having your stuff searched is a fool's errand. They'll make it happen one way or another.
But I'd never unlock my phone for US immigration. That's my whole life on there, and they don't have the right to compel me to unlock it. Even there, be polite. You can say "no" politely.
Where this guy went wrong was actively wiping his phone. That's no good. What you do is put your phone in its most secure state (generally powering it off) before you reach the immigration desk, and then if they seize it, you have to trust its security to keep them from getting into it.
They can just ask you to unlock it for them.
They can ask, yes. And I can refuse. They can’t detain me more than temporarily, and they can’t prevent me from entering the country.
I'm afraid to leave the country precisely because I worry about difficulties upon return. I understand that as a citizen I can't be denied reentry, but I also understand they can make the process extremely difficult or uncomfortable if they want to and I have little or no recourse.
They can still make your life very difficult. They could throw you in jail for "obstructing investigation" or something similar.
Not in US, but had my phone seized by authorities and was asked to unlock it. I'm walking free, but I think what really saved me is that I genuinely complied with investigation and the only place where I drew the line was me giving away my password.
If I used my right to remain silent AND not give away the password, I'd probably be charged with something. I'm sure its very similar in many countries, including US.