Criminal Code (Cap. 9), article 444

444. During the trial, the witnesse s shall be kept in a separate place where the discussion canno t be heard. Witnesses shall not be allowed to return to that place after their examination; but wh en it will probably be necessary to re-examine them on some particula r circumstance, they sha ll be kept apart from the other witnesses not yet examined: Powers of court. Provided that the court may, with the consent of the Attorney General and the accused, permit any witn ess to remain in court during the trial: Provided further that the court may, notwithstanding the objection of either party, grant such permission to witnesses g iving professional or expert evidence, if the court itself deems it expedient for the ends of justi ce that such witnesses should he ar the depositions of other witnesses. If accused appears without counsel.