If they are worried about a suspect fleeing, they can impose restrictions which, if breached, could result in the individual being locked up.

BBC: Police bail in the dock

So far, Heathrow has not been packed with financiers fleeing the country (if staff at British Airways and Eurostar go on strike, they may find it hard to leave).

ECONOMIST: London risks losing its global appeal

What is clear is this: If the minor in question were fleeing parents who she believed wanted to kill her for reasons other than Islam's Shariah, it is hard to imagine that the system in Florida ostensibly charged with protecting such children would even contemplate restoring parental custody.

CENTERFORSECURITYPOLICY: Death sentence? The FDLE Report