Now WHO advice for ex-pats to stay put has been ignored... What will happen if some over-entitled business wonk decides they're far too busy and important to be stuck in some down-market NHS quarantine accommodation for two weeks and decides to bluster their way out (or get their corporate lawyers to threaten legal action for kidnap or some such).... Is there any way to stop them?.... Some emergency power? ... Or some law passed during a 19th century cholera outbreak that's still on the books??..... At one time you could rely on people's public spiritedness... These days that is in short supply with some people.