Gérald Darmanin asked that police officers and gendarmes, regularly accused of not displaying their identification number during law enforcement operations, wear it "in all...." In this letter addressed to the prefects and directors of the police and gendarmerie, the Minister of the Interior emphasizes twice the acronym "RIO" (repository of identities and organization) It is mandatory since 2014, allowing to identify a civil servant, especially in case of violence.