There are a few issues where Americans on both sides of our political divide are in agreement and one of them is the wrongfulness of civil asset-forfeiture laws. Under those laws (which exist at federal, state, and local levels), a person can be deprived of his property merely because a law-enforcement official suspects that it might have somehow been involved in a crime. For example, if a person is stopped while carrying a lot of cash and the police suspect that the cash might have come from illegal drug transactions, the police can seize the money. Or, if a police officer thinks that a car...