A federal judge late on Tuesday blocked the Trump administration from making widespread immigration arrests in the nation's capital without warrants or probable cause that the person would be an imminent flight risk. The US district judge Beryl Howell in Washington granted a preliminary injunction sought by civil liberties and immigrant rights groups in a lawsuit against the US Department of Homeland Security. Officers making civil immigration arrests generally have to have an administrative warrant.
Traditionally, drunk driving cases have been about an officer arresting someone when they pull up and smell alcohol or see bloodshot eyes. But some judges are saying in addition to that, you need evidence that the person is driving erratically or unlawfully.