The investigating judge, chosen from among the judges of the court, is appointed in the forms provided for the appointment of judges.
If necessary, another judge may be temporarily entrusted, in the same forms, with the duties of investigating judge concurrently with the magistrate appointed as stated in the first paragraph.
If the First President delegates a judge to the court, he may also, under the same conditions, temporarily entrust the latter with the investigation by means of an order.
If the investigating judge is absent, ill or otherwise prevented from attending, the judicial court shall designate one of the judges of that court to replace him.