The anti-CPE demonstration of the 28th was the largest to date, with close to 3 million people in France according to the organizers (1 according to the police). At the end of the demonstration, riots erupted on the Place de la République.
Here, a policeman is firing paintballs to mark troublemakers: the unwashable paint will allow the police to arrest them later on. [EDIT]: it actually seems to be pepper balls, see comments hereunder.
Part of Demonstrations