We are commanded to pass judgment on a thief. Depending on the circumstances, the thief may be required to pay double the amount stolen, or four or five times the principal.

This mitzvah also includes the allowance for a property owner to kill a thief who is trespassing on his land [under certain circumstances, if there's reason to believe that the thief poses a potential threat to the landowner's life], and the obligation on the court to sell the thief into servitude [if he has not the means to make restitution].