Article R*49-31 of the French Code of Criminal Procedure
When the priority question of constitutionality is raised in the course of an appeal, the separate pleading provided for in article 23-5 of Order no. 58-1067 of 7 November 1958 shall bear the words: “priority question of constitutionality”. The other parties to the appeal have one month to submit a statement in response to the priority question of constitutionality. This is drawn up, submitted and communicated in accordance with the…