The mobilization of yellow jackets, Saturday, was marked by a large number of violence and very numerous arrests: 412 in total according to the prefect of police. The prosecutor's office must manage 378 persons in custody and increase the number of immediate appearances. The people arrested are mainly men from 30 to 40 years old.

The day of demonstration of yellow Vests Saturday in Paris was marked "by violence of an unprecedented gravity" , estimated Sunday the prefect of police Michel Delpuech. In total, 412 people were arrested, "a level never reached in the last decades," he added at a press conference, deploring "extreme and unprecedented violence" against the police with "hammer rolls" , "steel balls" or "big bolts" .

In total "249 fires" were identified by firefighters, targeting "112 vehicles, 130 street furniture" and "six buildings," he listed, adding that "the complete inventory of damage is in progress . " Deploring "deliberate violence" committed by people "eager to confront the forces of order" and "to fight," Michel Delpuech said that among them were "groups of ultra-right extremists" and ultra-left .

Police Prefect Michel Delpuech (right), alongside Emmanuel Macron and Christophe Castaner. | REUTERS

An unprecedented management for the parquet floor

But there was also "a very large number of demonstrators wearing a yellow vest" and who did not hesitate by "disinhibition" or a "training" effect , "to indulge also in unjustifiable violence" , he said. "We can not claim to be a movement that wants to be peaceful and come to the streets of Paris with behavior that is unacceptable," he said.

Present at his side, the Paris prosecutor Remy Heitz said that "378 people" were placed in custody, "including 33 minors" . The prosecution "has never had to manage such a large number of people in custody," he added.

The people arrested are mostly men from 30 to 40, reports the Prosecutor of Paris. | Alain JOCARD / AFP

Among them are "many major men," aged between 30 and 40 , "often coming from the provinces, socially inserted" and "come to fight with the police ," he said. added.There were also "younger profiles, Parisians" who were "more motivated by a crime of appropriation" and "came to enjoy looting," also said Rémy Heitz. "Justice will pass" because "there can be no impunity," he assured.

The justice system has been widely reviewed. Five judges were on duty, they are now fifteen and the number of immediate appearances will double in the coming days. Five hearings are scheduled Monday and four Tuesday. "All the people against whom things will be retained, will be referred," insisted Remy Heitz. For acts of violence against a person in charge of the public authority, deterioration, harbor of arms or groupings with a view to committing violence, they risk between three and seven years of imprisonment.