When prisoners of war have not the assistance of a retained chaplain or of a prisoner of war minister of their faith, a minister belonging to the prisoners' or a similar denomination, or in his absence a qualified layman, if such a course is feasible from a confessional point of view, shall be appointed, at the request of the prisoners concerned, to fill this office. This appointment, subject to the approval of the Detaining Power, shall take place with the agreement of the community of prisoners concerned and, wherever necessary, with the approval of the local religious authorities of the same faith. The person thus appointed shall comply with all regulations established by the Detaining Power in the interests of discipline and military security.