> Why would someone who has not committed a crime and is not accused of a crime need a court case? So if the executive decides they suspect you are an illegal

> Why would someone who has not committed a crime and is not accused of a crime need a court case? So if the executive decides they suspect you are an illegal alien, detains you, claims to have checked you are an illegal alien, and then expels you to some foreign country you have no right to challenge this at any point in the process? Because if that’s what you think “due process” means, than the government never has any need for criminal process at all, it just needs to decide it suspects people of being illegal aliens instead of criminals, then it can imprison them indefinitely while it “checks” and expel them whenever it decides it tires or imprisoning them (perhaps to someplace it knows they will be killed or deprived of then nevessities of life), all without ever defending any of those acts as justified in court.