This book describes and analyzes the Swedish legal rules and practices regarding jurisdiction, mutual legal assistance in criminal matters, extradition, and the EU arrest warrant. Swedish law and practice in international criminal law is particularly significant for two main reasons. First, it is a system which is both logical and coherent. It displays a considerable Germanic theoretical influence, but its sophistication is tempered by pragmatism and is designed to facilitate "user-friendliness." Second, the Nordic countries - because of a common history, shared language, and cultural factors - have long had a very high and effective degree of cooperation in international criminal law matters. The experience of Nordic cooperation has been an important inspiration for the legislative work of the EU in the field. To create a "European judicial space, " based upon both harmonization and mutual recognition of decisions, the EU has produced a large number of instruments to improve judicial a