On Monday, 26 May 2025, the 183rd event in the Monday Seminar Series ‘Current Problems of Private Business Law’ was held at the Institute for Business Law at the University of Innsbruck. The seminar was organised by Prof Dr Susanne Augenhofer, LL M (Yale), Prof Dr Alexander Schopper and Prof Dr Julia Told.

The speaker, Dr Bernadette Zelger, LL M (QMUL), began by outlining the case law of the Court of Justice of the European Union (CJEU) on the principle of ne bis in idem in European competition law. She presented the CJEU’s decisions in the Nordzucker case (C-151/20) and the BPost case (C-117/20). She welcomed the now coherent approach taken by the CJEU and noted its alignment with the case law of the European Court of Human Rights (ECtHR). The principle of ne bis in idem is also now gaining practical relevance in the context of the digital economy. Despite this coherent jurisprudence, unresolved and open questions remain, especially concerning the parallel application of ‘classic’ EU competition law and new regulations concerning digital markets, such as the Digital Markets Act (DMA). The seminar concluded with a lively discussion in which participants from academia and practice further explored the framework and normative relationship of the legal areas addressed.