Ne exeat
At common law, ne exeat (Latin "that he not depart") is an equitable writ restraining a person from leaving the jurisdiction of the court or the state. The Writ may be issued to ensure the compliance by the defendant with a court order.
The full phrase is ne exeat republica (Latin "let him not go out of the republic"). The phrase ne exeat regno (Latin "let him not go out of the kingdom") has also been used in English law.