Within a relatively short period of time, the European Court of Justice (ECJ) has had the opportunity to address the issue of a transnational ne bis in idem principle in several cases in the EU, and a legislative proposal was also put forward on this matter.1 The increased attention paid to the transnational application of the ne bis in idem principle shows that the judicial authorities of the EU Member States are facing a growing number of cases that simultaneously involve several jurisdictions. The present article focuses on the ne bis in idem principle in the context of an Area… Read more