The European Criminal Policy Initiative (ECPI) proudly presents this volume, which contains "A Manifesto on European Criminal Procedure Law" in five different language versions (English, German, Spanish, Italian and Romanian) as well as short explanatory articles written by members of the ECPI. The manifesto focuses on the cooperation in criminal proceedings within the EU. In the manifesto the ECPI - which was founded in 2008 and is composed of 16 criminal law scholars from ten EU member states - presents a set of principles that should guide and be observed by different EU bodies when legislating in the field of criminal procedure law. The present manifesto follows the "Manifesto on European Criminal Policy" of 2009, which focused on similar guidelines for the European legislature as regards substantive criminal law.