Geologist, PhD in crime analysis and passionated by rivers, I work on their protection and cleaning. Expert for the navigability and hazard problems,I realized inspections of rivers to higlight natural and artifical hazards. I realize cartography with GIS and spatioal analysis. I realize too investigations when an accident (navigation, swimming or natural harzard) occured to explain what append. My main clients are authorities who are in charge of public safety and the Justice who has in charge of an investigation.