Deportation is a civil treatment. It's one of the actions the government can use when you violate civil immigration laws:

  The Court added that an alien being removed by the government is not being “deprived of life, liberty, or property” and that “the provisions of the Constitution securing the right to trial by jury and prohibiting unreasonable searches and seizures and cruel and unusual punishments [therefore] have no application. That is also why federal immigration officers do not need a warrant issued by a judge before arresting and detaining aliens and why aliens are not entitled to be advised of their Miranda rights or to the assistance of a government-appointed lawyer during their deportation proceedings.

https://www.heritage.org/border-security/report/due-process-...