Circumvention of Law and the Hidden Logic behind It

The law is full of circumvention maneuvers that lawyers try to exploit and authorities try to suppress. We prove formal results showing that all reasonable legal systems are necessarily extremely manipulable by open schemes that require no type of misrepresentation and no violation of the law. In addition, antievasion rules designed to reduce such manipulation can have only limited success and cannot be easily justified as constituting an improvement.