Usually because they don't want to be caught! And why do they not want to be caught? Because they are criminals!
so ANYONE who runs is a criminal? they had their chance to prove it and they couldn’t. they pushed around a man they could NOT prove was involved. so running did NOT make him guilty of anything. facts are funny things.
so, it will be only fitting someday when you run from something to get mistreated by the cops. good for you. I will not give away my civil rights so easily.