Activities of intelligence agencies have recently moved into the focus of public critical review all over Europe. The publication of the Snowden documents revealed a surveillance practice of unknown extent. Intelligence surveillance no longer focuses on state organizations or political decision-makers alone; technical innovation rather allows an unprovoked mass surveillance of individual communication. In view of this development, the media and politicians have demanded legal limitations of such practices. This handbook takes into account the various facets of intelligence activities in Europe spanning from chapters on intelligence operations to intelligence cooperation within different policies in Europe, within the EU and without (e.g. NATO). The handbook covers: Part 1 Introduction Part 2 The European Intelligence Agenda Part 3 European Intelligence Cooperation Part 4 European Intelligence and the Rule of Law Part 5 European Intelligence in national legislation and legal practice (with peculiar regard to Germany, France and the United Kingdom) This book is suitable for academic and practical purposes alike. Political, social and historical analyses are brought in context with the legal discourse. Dr JanHendrik Dietrich is professor at the Federal University of Administrative Science; Dr Satish Sule works for the European Commission: The authors are Dr Christian von Buttlar (NATO); Dr Jana Gajdosova (FRA), Professor Ian Leigh (Durham University); Dr Julian Siegel (European Commission); Carly Nyst (Privacy International); and Eric King (Privacy International)