Abstract

In the Realm of Criminal Law, Antony Duff seeks to defend the view that we should criminalize conduct only if it is wrongful. Skeptics of legal moralism argue that this occurs all the time in supposedly overinclusive offenses whose definitions capture not only the kind of conduct that constitutes the target wrong, but also a wider class of conduct that is not wrongful prior to prohibition. An example is statutory rape. Duff, in response, contends that such offenses need not violate the requirements of legal moralism. Having exploitative sex with juveniles is obviously wrong even prior to its legal regulation. But having non-exploitative sex with juveniles is also potentially wrong, inasmuch as it involves a violation of a prohibition that society has decided is justified for instrumental reasons. While Duff’s analysis offers an ingenious explanation for why offenses like statutory rape need not violate the bare minimum requirements of legal moralism, it simultaneously exposes separate, largely unacknowledged, problems of fair labeling and proportionality. By combining in a single offense wrongs that are primarily malum in se with ones that are primarily malum prohibitum—a process referred to as “wrongfulness conflation”—we risk treating unlike wrongs alike, imposing disproportionate punishments, and blurring offense labels. And such problems occur not just in the context of statutory rape, but also with respect to a host of other supposedly overinclusive offenses, including various forms of sexual assault.