Book excerpt: International Practices of Criminal Justice: Social and Legal Perspectives examines the practitioners, practices, and institutions that are transforming the relationship between criminal justice and international governance. The book links two dimensions of international criminal justice, by analyzing the fields of international criminal law and international police cooperation. Although often thought of separately, each of these fields presents criminal justice as a governance method for resolving international challenges and crises. By focusing on examples from international criminal tribunals, transitional justice, transnational crime, and transnational policing and prosecution, the contributors to this collection all examine how criminal justice is unmoored from the state, while also attending to the struggles and challenges that emerge when criminal justice is used as a form of international action. International Practices of Criminal Justice: Social and Legal Perspectives breaks new ground in criminology, international legal studies and the sociology of law, and will be of interest to students, scholars, and practitioners across a wide array of fields in criminal justice, international law, and international governance.