Professor at the University of Paris-Nord, where he specialises in risk chemistry. He also is regularly employed as a risk expert for major industrial chemical groups. The English language edition consultant, Keith Cassidy, Franklin Medallist of the Institution of Chemical Engineers, lectures widely and is author of more than 100 papers on risk regulation, assessment and management and control of major chemical hazards. He is past Chairman of the UK Hazard and Risk Methodologies Group and until recently was Head of UK's Health and Safety Major Hazards Unit.