Michiel Luchtman is Professor of Transnational law enforcement and Fundamental Rights at the Willem Pompe Institute for Criminal Law and Criminology, Utrecht University, the Netherlands.Katalin Ligeti is Professor of European and International Criminal Law, University of Luxembourg.John Vervaele is Professor of Economic and European Criminal Law at Utrecht Law School, the Netherlands.

• Introduction Michiel Luchtman (Utrecht University, the Netherlands), Katalin Ligeti (University of Luxembourg) and John Vervaele (Utrecht University, the Netherlands)PART IPUNITIVE ENFORCEMENT IN COMPOSITE PROCEDURES: THE CONSTITUTIONAL SETTING1. Setting the Scene: The Rise of EU Law Enforcement Authorities Michiel Luchtman (Utrecht University, the Netherlands)2. Constitutional Principles and Composite Punitive Enforcement in the EU Aart de Vries (Utrecht University, the Netherlands) and Rob Widdershoven (Utrecht University, the Netherlands)3. Composite Enforcement and Comprehensive Judicial Protection Katalin Ligeti (University of Luxembourg) and Gavin Robinson (Utrecht University, the Netherlands)PART IIMODELS FOR PUNITIVE ENFORCEMENT IN COMPOSITE PROCEDURES4. The Investigative Stage Martin Böse (University of Bonn, Germany ) and Anne Schneider (University of Düsseldorf, Germany)5. The Exchange of Operational Information between EU and National Authorities Koen Bovend’Eerdt (Utrecht University, the Netherlands) and Iro Karagianni (Utrecht University, the Netherlands)6. The Use of Investigative Results as Evidence in National Punitive Proceedings: The Case of OLAFFabio Giuffrida (European Commission, Belgium) and Georgia Theodorakakou (European Criminal Law Academic Network, Belgium)PART IIICAPITA SELECTA: TOPICAL ISSUES OF EU ENFORCEMENT AUTHORITIES AND THEIR RELATIONS WITH THE NATIONAL LEGAL ORDERS7. Where Engel Fears to Tread? Applicable Law, Choice of Forum and Ne Bis in Idem in a Composite Administrative Punitive Legal Order Gavin Robinson (Utrecht University, the Netherlands)8. Information Sharing between the EU Administrative Enforcement Agencies and the Criminal Authorities Sensu Stricto Silvia Allegrezza (University of Luxembourg), Anna Moraiti (University of Luxembourg), Leonardo Romanò (University of Luxembourg) and Andrea Salemi (Grimaldi Studio Legale, Belgium)9. Lawful and Fair Use of Criminal Evidence in the EU: The Unwritten Script for European Enforcement Agencies John Vervaele (Utrecht University, the Netherlands)PART IVOUTLOOK AND PERSPECTIVES10. Pertinent Issues of Punitive Enforcement in a Composite Legal Order Michiel Luchtman (Utrecht University, the Netherlands)11. Outlook on the European Public Prosecutor’s Office: A Giant with National Clay Feet? John Vervaele (Utrecht University, the Netherlands)