he’s being held in prison until he gives up the password

So basically he is in prison without proven guilty? That is exactly how “Communist” countries did: “you are probably guilty and just in case you will spend next 10-20 years in prison untill you admit your guilt”. Now is “OK” for pedophiles, next will be OK too for political oposition.

What? US police can ask you for the phone password? No way! That is 100% police state. Stalin was amateur comparing to present day USA.