This book examines the mutual recognition of judicial decisions in European criminal law as a cornerstone of judicial co-operation in criminal matters in the European Union. Providing comprehensive content and combining theoretical and practical aspects, it covers all of the major issues surrounding mutual recognition. The book analyses its definition, genesis, principles, case law, implementation and evaluation. Special attention is given to mutual recognition measures, namely European arrest warrant (i.e. surrender procedure), mutual recognition of custodial sentences, and measures involving deprivation of liberty, mutual recognition of probation measures and alternative sanctions, mutual recognition of financial penalties, mutual recognition of confiscation orders, the European supervision order in pre-trial procedures (i.e. mutual recognition of supervision measures as an alternative to provisional detention), the European investigation order (i.e. free movement of evidence), and the European protection order (i.e. mutual recognition of protection orders). Instead of focusing solely on a criminal law approach, the book also considers the subject from the perspectives of European Union law and International criminal law.