The decision requesting the opinion is sent, together with the submissions and any written observations, by the court registry to the registry of the Cour de cassation. It is notified, as well as the date of transmission of the file, to the parties by registered letter with acknowledgement of receipt. The public prosecutor at the court is notified as well as the first president of the court of appeal and the public prosecutor when the request for an opinion does not emanate from the court.