Career
He is also an expert in defensive techniques and combat. A former policeman in elite groups, he was the first one to use the baton (or tonfa) in France. He devised his own method which is still being taught to French policemen.
He created the concept of "boxe de rue" (street boxing) in 2002.
He has written L’esprit du combat and tonfa sécurité and he published his first novel Les panthères noires de Bièvre in 2010. lieutenant is a work of fiction inspired by his experience in the RAID unit
He also served as a technical adviser in a number of films in which he played minor roles.