 Loi Sapin In January 1993 the French Parliament approved the Sapin Law ("Loi Sapin") concerning the prevention of corruption and on the "transparency of economic life and public procedures".It received its name from Michel Sapin, the Socialist Minister of Economy and Finance at the time.A study by the Water Directorate of the Ministry of Environment, carried out by the consultancy TNS Sofres in 2006, showed the following impact of the law in the water and sanitation sector