The Criminalization series arises from an interdisciplinary investigation into criminalization, focussing on the principles and goals that should guide decisions about what kinds of conduct are to be criminalized, and the forms that criminalization should take. Developing a normative theory of criminalization, the seven volumes tackle the key questions at the heart of issue: By reference to what principles and goals should legislations decide what to criminalize? How should criminal wrongs be classified and differentiated? And how should law enforcement officials apply the law's specification of offences?