Many valuable contributions have been written (for example this blog post but also elsewhere, among many others) on the M.A.S. decision (M.A.S. and M.B., case C-42/17 a.k.a. Taricco II) and, more in general, on the Taricco saga. The majority of them, however, focus mainly on the criminal and constitutional law dimensions separately. In this contribution, we focus on these dimensions together: we believe that this decision is equally important for the relationship between the Court of Justice of the EU (CJEU) and the national Constitutional Courts as it is for the hazardous path of a harmonization of the general part of criminal law at EU level.
The reason why these two dimensions are usually examined separately lies on the different background of the scholars concerned. In this blogpost we have done the effort to put together and explain the importance of the M.A.S. decision from the viewpoint of a criminal lawyer and from the one of a (European) constitutional lawyer. To do that, this work will be divided in two main parts: we will firstly look at the relationship between the CJEU and the Italian Constitutional Court (ICC) (in the first part, sections I and II, written by Giovanni Zaccaroni). We will then see whether and how the decision advances the harmonization of criminal law at an EU level (the second part, sections III-V, written by Francesco Rossi). Continue reading