The globalization of threats and the complexity of international security issues represents a greater challenge for international policing in shaping and reshaping inter-agency interaction, and makes effective international police cooperation more necessary than ever before.This book sets out to analyse the key emerging issues and the theory and practice of international police cooperation. While most studies focus on the reasons for the desirability of police cooperation as an approach to transnational crime, on the interactions between national police services, or on the challenges of the democratisation of the collaboration process and respect of human rights, International Police Cooperation pays special attention to the factors that have contributed to the effective working of police cooperation in practice and the problems that are encountered.This book brings together original research from leading authorities in the field internationally, examining initiatives undertaken by agencies (practices and processes introduced) as well as the impact of external legal, political, and economic pressures.Contributors explore emerging initiatives and new challenges in several contexts at both national and international levels. They adopt a variety of approaches and theoretical frameworks in seeking to reach a broader understanding of current and future issues in police cooperation, drawing upon the disciplines of criminology, ethics, organisational science, political science, and sociology.International Police Cooperation will be essential reading for both practitioners and students of policing.