Experts-traducteurs are professional translators chosen by a jury on application to the Cour d'Appel of their home region in France, e.g. Cour d'Appel of Rennes for Brittany. They have to show the jury on application, that they have been working for minimum three years for prosecution, and that the result of their work corresponded exactly to the original text. They are then listed on a document tended by the regional "Cour d'Appel" as regional expert translator/interpreter. They are regularly checked by police officers on their personal acquaintances and life style for ensuring loyalty, lawfulness and impartiality. Translators listed at the "Cour d'Appel" can, after again three years, file another application at the jury of the "Cour de Cassation" in Paris for being listed as national expert translator.