Geneva Convention (IV): Relative to the Protection of Civilian Persons, Part III, Section 4, Chapter VI
Internees shall be permitted to retain articles of personal use. Monies, cheques, bonds, etc., and valuables in their possession may not be taken from them except in accordance with established procedure. Detailed receipts shall be given therefor.
The amounts shall be paid into the account of every internee as provided for in Article 98. Such amounts may not be converted into any other currency unless legislation in force in the territory in which the owner is interned so requires or the internee gives his consent.
A woman internee shall not be searched except by a woman.
On release or repatriation, internees shall be given all articles, monies or other valuables taken from them during internment and shall receive in currency the balance of any credit to their accounts kept in accordance with Article 98, with the exception of any articles or amounts withheld by the Detaining Power by virtue of its legislation in force. If the property of an internee is so withheld, the owner shall receive a detailed receipt.
Family or identity documents in the possession of internees may not be taken away without a receipt being given. At no time shall internees be left without identity documents. If they have none, they shall be issued with special documents drawn up by the detaining authorities, which will serve as their identity papers until the end of their internment.
Internees may keep on their persons a certain amount of money, in cash or in the shape of purchase coupons, to enable them to make purchases.
All internees shall receive regular allowances, sufficient to enable them to purchase goods and articles, such as tobacco, toilet requisites, etc. Such allowances may take the form of credits or purchase coupons.
Furthermore, internees may receive allowances from the Power to which they owe allegiance, the Protecting Powers, the organizations which may assist them, or their families, as well as the income on their property in accordance with the law of the Detaining Power. The amount of allowances granted by the Power to which they owe allegiance shall be the same for each category of internees (infirm, sick, pregnant women, etc.), but may not be allocated by that Power or distributed by the Detaining Power on the basis of discrimination between internees which are prohibited by Article 27 of the present Convention.
The Detaining Power shall open a regular account for every internee, to which shall be credited the allowances named in the present Article, the wages earned and the remittances received, together with such sums taken from him as may be available under the legislation in force in the territory in which he is interned. Internees shall be granted all facilities consistent with the legislation in force in such territory to make remittances to their families and to other dependants. They may draw from their accounts the amounts necessary for their personal expenses, within the limits fixed by the Detaining Power. They shall at all times be afforded reasonable facilities for consulting and obtaining copies of their accounts. A statement of accounts shall be furnished to the Protecting Power on request, and shall accompany the internee in case of transfer.