Glenn Reynolds on overcriminalization and regulation [USA Today]:
Regulatory crimes” of this sort are incredibly numerous and a category that is growing quickly. They are the ones likely to trap unwary individuals into being felons without knowing it. That is why Michael Cottone, in a just-published Tennessee Law Review article, suggests that maybe the old presumption that individuals know the law is outdated, unfair and maybe even unconstitutional. “Tellingly,” he writes, “no exact count of the number of federal statutes that impose criminal sanctions has ever been given, but estimates from the last 15 years range from 3,600 to approximately 4,500.” Meanwhile, according to recent congressional testimony, the number of federal regulations (enacted by administrative agencies under loose authority from Congress) carrying criminal penalties may be as many as 300,000.
And it gets worse. While the old-fashioned common law crimes typically required a culpable mental state — you had to realize you were doing something wrong — the regulatory crimes generally don’t require any knowledge that you’re breaking the law. This seems quite unfair.