"It is also worth considering whether mere regulatory violations—malum prohibitum rather than malum in se—should bear criminal sanctions at all. Traditionally, of course, citizens have been expected to know the law. Yet traditionally, regulatory crimes usually applied only to citizens in specialty occupations, who might be expected to be familiar with applicable regulatory law."<p>This is a particular peeve of mine. Throwing someone in prison should require demonstrable harm worthy of the state swinging its hammer. Fraud is already a crime, so is theft, so is deception in its various forms. Failure to fill out a form or making a mistake in light of a rule should not carry the risk of a criminal record.<p>By the way, "The Illustrated Guide to Law"[0] has an outstanding section on the concept of regulatory breaches as crimes and why they shouldn't be the cause of someone being thrown into jail.<p>0 - <a href="http://lawcomic.net" rel="nofollow">http://lawcomic.net</a>