(FILES) This file photo taken on June 17, 2015 shows Chairman and CEO of Dassault Group Serge Dassault (L) and Medef President Pierre Gattaz talking during the International Paris Airshow at Le Bourget. A court will render its judgement on September 1, 2016, as the National Financial Prosecutor (FNP) requests to deprive Serge Dassault of his mandate because of tens of millions of euros hidden during 15 years to tax authorities. / AFP PHOTO / MIGUEL MEDINAMIGUEL MEDINA/AFP/Getty Images