Article R57-8-7 of the French Code of Criminal Procedure
Pre-trial detainees exercise their right to maintain links with the outside world under the supervision of the judicial authority, under the conditions determined by the provisions of Title IV of Book III of the code pénitentiaire, in particular: 1° those of Chapter I, as regards visits; 2° those of Chapter II, as regards family reunions; 3° those of Chapter V, as regards written correspondence and telephone communications.