Book excerpt: This book critically reflects on the relationship between 'core crimes' which make up the subject matter jurisdiction of the International Criminal Court (such as war crimes, crimes against humanity, genocide, and aggression) and transnational crimes. The contributions in the book address the features of several transnational crimes and generally acknowledge that the boundaries between core crimes and transnational crimes are blurring. One of the major questions is whether, in view of this gradual merger of the categories, the distinction in legal regime is still warranted. Should prosecution and trial of transnational crimes be transferred from national to international jurisdictions?