Comment by nonethewiser

> Do you want to never let a perp go (i.e. jail innocent people in order to catch every guilty person) versus let some baddies slip through the net while not imprisoning innocent people

Isn't the latter the official standard most places? Innocent until proven guilty. It's just not really a dilemma if you ask me. If you have authority to do something based on some event, then you have to prove that event happened.