It's called Dereliction of Duty because a duty of the Executive Branch is to faithfully execute the laws of the United States, under which law enforcement resides.
What happens if a president and the federal government fail to follow a judge’s orders? byteseu.com/927573/ #Politics
WASHINGTON — The Trump administration has been accused of ignoring or flat-out defying recent federal court orders, with two judges now weighing contempt findings against officials.
BYTESEU (Bytes Europe)