Lol there is no due process at the border for a simple imprisonment, it is 'administrative' and I have been held up to a day or so without any sort of hearing. I pulled my FBI record from the last time they tossed me in immigration holding cell, there is no record of it. They don't allow you to have a phone, they do not let you have an attorney, and they do not document they've imprisoned you. They lock you away and that is that, it is your word against theirs and your word from behind a jail cell. You will never prevail in such a situation, and if you complain outside of some place like HN the vast majority of people will angrily ask what you did wrong and that there 'must be more to the story' so you rarely even bring it up.

I do not think most people can conceive just how common and deranged the situation is, and that not only that the documentation is so poor and that most of the people this happens to will not speak up, either because no one will believe them or because they are not a citizen and are afraid it will result in reprisal.