The criminal chamber of the Court of Cassation, the highest court, delivered a judgment on Tuesday. The police will now have to go through a judge to follow a suspect's phone.

This is a new illustration of the primacy of European law over French law. “The law becomes a game of goose. You roll the dice, you come across a square with a hole. And you start again at the beginning,” squeaks a police commissioner, who is now wondering: “Where has Emmanuel Macron’s promise to simplify criminal proceedings gone?"