Article 1031-1 of the French Code of civil procedure
When the judge intends to request the opinion of the Cour de cassation pursuant to article L. 441-1 of the Code de l’organisation judiciaire, it notifies the parties and the public prosecutor, failing which it is inadmissible. It shall collect any written observations they may have within the time limit it shall set, unless they have already concluded on this point. On receipt of the observations or on expiry of…