(should they focus on it they would not get access to its internals)
If they have the device
and you, you may be forced to share it depending on the law of the country. Some countries have gone mad already:
|snip|
Good luck proving you forgot the key.
I really wonder, what do they do if you pretend that you forgot keys? I think that they might give up on a very average person but if there is a guy with 10k and higher number of bitcoins in front of them, what do they do? Do they use so called
Truth Serums? I really wonder about that because if person hesitates to reveal the password, they can't publicly torture him but there are medicines that pushes us to reveal some of our secrets, like alcohol, right? There should be some drugs in governments that will force the person to be very open and speak truth.
It's not only cash, if the value is for instance in gold you'll still need to declare it.
If you are not a public figure and don't publicly claim that you have bitcoins, then customs will not mess with you. I have crossed borders with Electrum installed on my smartphone and PC but no one has ever asked me anything.