Part of the reason no one can easily count the number of federal crimes is that our federal criminal code was “not planned; it just grew,” as Ronald Gainer, a retired Justice Department official, puts it. We do not have any single place to which people can turn to discern what our criminal laws prohibit. Sure, there’s Title 18 of the U.S. Code, “Crimes and Criminal Procedure.” But in truth, criminal laws are scattered here and there throughout various federal statutory titles and sections, the product of different pieces of legislation and different Congresses. Really, our federal criminal law is, Gainer writes, “a loose assemblage of … components that were built hastily to respond to perceptions of need and to perceptions of the popular will.”
That’s not the only confounding factor, though. Many federal criminal statutes overlap entirely, are duplicative in part, or, when juxtaposed, raise perplexing questions about what they mean. Take fraud. We have a federal mail-fraud law. We have a federal wire-fraud law. We have federal bribery and illegal-gratuities laws. We also have a federal law forbidding the deprivation of “honest services,” though no one is exactly sure what it does (or does not) add to all those other laws about fraud. On top of all this, more new laws criminalizing fraud are proposed during just about every session of Congress. [emphasis added]
Once more, Congress’s output represents just the tip of the iceberg. Our administrative agencies don’t just turn out rules with civil penalties attached to them; every year, they generate more and more rules carrying criminal sanctions as well. How many? Here again, no one seems sure. But estimates suggest that at least 300,000 federal-agency regulations carry criminal sanctions today.