What exactly is the context in which all aspects of this new field of criminal law have to be interpreted? What does the principle of legality mean in the context of supranational criminal law? Which tradition lies at the basis of this new law system? Is supranational criminal law as it grows the result of a deliberate policy, tending towards a coherent system? Or is it merely the result of crisis management? Those are some of the questions that are highlighted in this first volume of the Supranational Criminal Law series.