The investigation was opened by the Paris public prosecutor's office into charges of violence by a person holding public authority, and the IGPN was asked to continue the investigations.
An investigation was opened and the IGPN was contacted after the complaint of a demonstrator injured in the head during the social mobilization on Saturday in Paris, said the Paris prosecutor's office.
Videos taken near the Gare du Nord and posted on social networks on Saturday show a man"injured in the head"and bleeding.
The complainant"indicated that it was he who appeared in the videos broadcast on social networks and blamed the police for illegitimate violence", according to the prosecution.