Article D43-3 of the French Code of Criminal Procedure
The President of the Examining Magistrates’ Chamber shall inform each Examining Magistrate within the jurisdiction of the Court of Appeal of the designation of the referral magistrate for this Chamber chosen by him or her to be specifically responsible for ensuring the administrative monitoring of this judge’s chambers and for exercising, as far as he or she is concerned, all or part of the powers provided for by the articles…