The theory of transgovernmental networks describes how government officials make law and policy on issues of global concern by coordinating informally across borders, without legal or official sanction. Scholars have argued that this sort of coordination is useful in many different areas of cross-border regulation, including banking, antitrust, environmental protection, and securities law. One area to which the theory has not yet been applied is international criminal law. For a number of reasons, until recently, international criminal law had not generated the same transgovernmental networks that have emerged in other fields. With few exceptions, international criminal law had been enforced at either the purely domestic or the internationa...