Maybe it can be like if theyve hired a gaurd or mercenary and are currently accompanied by them, they cant run.

Youll probably say: Well then theyll just not buy a gaurd/mercenary, so they can always run.
my response is: well that still leaves a chance for them to be caught. And they may also be too weak to fight on their owwn, so they need a gaurd/mercenary.
[@Rilla]