Geneva Convention relative to the Treatment of Prisoners of War, Articles 3.1, 16 and 33-37
In the case of armed conflict not of an international character occurring in the territory of one of the High Contracting Parties, each party to the conflict shall be bound to apply, as a minimum, the following provisions:
1. Persons taking no active part in the hostilities, including members of armed forces who have laid down their arms and those placed hors de combat by sickness, wounds, detention, or any other cause, shall in all circumstances be treated humanely, without any adverse distinction founded on race, colour, religion or faith, sex, birth or wealth, or any other similar criteria.
Taking into consideration the provisions of the present Convention relating to rank and sex, and subject to any privileged treatment which may be accorded to them by reason of their state of health, age or professional qualifications, all prisoners of war shall be treated alike by the Detaining Power, without any adverse distinction based on race, nationality, religious belief or political opinions, or any other distinction founded on similar criteria.
Medical personnel and chaplains retained to assist prisoners of war
Members of the medical personnel and chaplains while retained by the Detaining Power with a view to assisting prisoners of war, shall not be considered as prisoners of war. They shall, however, receive as a minimum the benefits and protection of the present Convention, and shall also be granted all facilities necessary to provide for the medical care of, and religious ministration to, prisoners of war.
They shall continue to exercise their medical and spiritual functions for the benefit of prisoners of war, preferably those belonging to the armed forces upon which they depend, within the scope of the military laws and regulations of the Detaining Power and under the control of its competent services, in accordance with their professional etiquette. They shall also benefit by the following facilities in the exercise of their medical or spiritual functions:
(c) Although they shall be subject to the internal discipline of the camp in which they are retained, such personnel may not be compelled to carry out any work other than that concerned with their medical or religious duties.
During hostilities, the Parties to the conflict shall agree concerning the possible relief of retained personnel and shall settle the procedure to be followed.
None of the preceding provisions shall relieve the Detaining Power of its obligations with regard to prisoners of war from the medical or spiritual point of view.
Religious, intellectual and physical activities
Prisoners of war shall enjoy complete latitude in the exercise of their religious duties, including attendance at the service of their faith, on condition that they comply with the disciplinary routine prescribed by the military authorities.
Adequate premises shall be provided where religious services may be held.
Chaplains who fall into the hands of the enemy Power and who remain or are retained with a view to assisting prisoners of war, shall be allowed to minister to them and to exercise freely their ministry amongst prisoners of war of the same religion, in accordance with their religious conscience. They shall be allocated among the various camps and labour detachments containing prisoners of war belonging to the same forces, speaking the same language or practising the same religion. They shall enjoy the necessary facilities, including the means of transport provided for in Article 33, for visiting the prisoners of war outside their camp. They shall be free to correspond, subject to censorship, on matters concerning their religious duties with the ecclesiastical authorities in the country of detention and with international religious organizations. Letters and cards which they may send for this purpose shall be in addition to the quota provided for in Article 71.
Prisoners of war who are ministers of religion, without having officiated as chaplains to their own forces, shall be at liberty, whatever their denomination, to minister freely to the members of their community. For this purpose, they shall receive the same treatment as the chaplains retained by the Detaining Power. They shall not be obliged to do any other work.
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.