Key points are not available for this paper at this time.
The European Court of Justice has once again ruled on national data retention laws. In La Quadrature du Net II, the full court allowed the indiscriminate retention of IP addresses for the purpose of fighting copyright infringement. It seems that the Court is slowly but surely abandoning its role as guardian of the right to privacy, as it now allows member states to collect vast amounts of data on their citizens in order to solve even the most minor of crimes.
Marco Mauer (Tue,) studied this question.