Yeah that's true but you have to be found guilty first, they can't just (I hope) pick you up and put you on a plane without a trial of some sort or a valid reas

Yeah that's true but you have to be found guilty first, they can't just (I hope) pick you up and put you on a plane without a trial of some sort or a valid reason that can be challenged in court (If you are a PR, that is or a visa holder).