Article 187-3 of the French Code of Criminal Procedure
In the case provided for in the second paragraph of article 148-1-1, the public prosecutor who appeals against an order for release that is contrary to his or her recommendations within four hours of being notified of the order must, on pain of inadmissibility, at the same time apply to the first president of the court of appeal or, if he or she is unable to do so, to the…