Very nice Widewing. Especialy this:
4) The goal must be to prevent the theft, not to cause deliberate injury. If the only way to apprehend the bad guy is to shoot him, let him go. You have enough trouble as it is, shooting a fleeing felon will only add to that exponentially, especially if the thief was unarmed. If he lives, he may get 2 years and probation. He'll be out of prison before you...