The US Supreme Court, the highest court in the United States of America, ruled on Tuesday that immigrants convicted of crimes can be placed in indefinite detention at any time - not just immediately after serving prison sentences.
And they can be held without bail.
In February 2018, the Supreme Court "curbed the ability of immigrants held in long-term detention during deportation proceedings to argue for release."
[T]the Supreme Court has endorsed the most extreme interpretation of immigration detention statutes, allowing mass incarceration of people without any hearing, simply because they are defending themselves against a deportation charge. ~ American Civil Liberties Union lawyer Cecilia Wang