The ImprovEAW-project concerns European Arrest Warrant proceedings in seven Member States (Belgium, Greece, Hungary, Ireland, the Netherlands, Poland and Romania). Maastricht Law Series No. 23 contains the country reports for Greece, the Netherlands and Poland. ImprovEAW is a follow up to an earlier project that focused on In Absentia Judgments (Maastricht Law Series No. 12). This book looks at various other aspects of the EAW surrender procedure that are problematic in practice, such as the information to be provided in the European arrest warrant, the status of the issuing authority and differences in implementation in the Member States. It also goes more into detail as it aims to present an alternative to the European Commission's outdated Handbook on how to issue and execute a European arrest warrant. This study ends with a proposal to create a procedure that complies with the demands of a dual level of protection, which takes place after arrest of the requested person in the executing Member State. The present research report is completed with a hands-on set of Common Practical Guidelines on issuing and executing EAWs for practitioners.