Geneva Convention (IV): Relative to the Protection of Civilian Persons, Part III, Section 4, Chapter X
The transfer of internees shall always be effected humanely. As a general rule, it shall be carried out by rail or other means of transport, and under conditions at least equal to those obtaining for the forces of the Detaining Power in their changes of station. If, as an exceptional measure, such removals have to be effected on foot, they may not take place unless the internees are in a fit state of health, and may not in any case expose them to excessive fatigue.
The Detaining Power shall supply internees during transfer with drinking water and food sufficient in quantity, quality and variety to maintain them in good health, and also with the necessary clothing, adequate shelter and the necessary medical attention. The Detaining Power shall take all suitable precautions to ensure their safety during transfer, and shall establish before their departure a complete list of all internees transferred.
Sick, wounded or infirm internees and maternity cases shall not be transferred if the journey would be seriously detrimental to them, unless their safety imperatively so demands.
If the combat zone draws close to a place of internment, the internees in the said place shall not be transferred unless their removal can be carried out in adequate conditions of safety, or unless they are exposed to greater risks by remaining on the spot than by being transferred.
When making decisions regarding the transfer of internees, the Detaining Power shall take their interests into account and, in particular, shall not do anything to increase the difficulties of repatriating them or returning them to their own homes.
In the event of transfer, internees shall be officially advised of their departure and of their new postal address. Such notification shall be given in time for them to pack their luggage and inform their next of kin.
They shall be allowed to take with them their personal effects, and the correspondence and parcels which have arrived for them. The weight of such baggage may be limited if the conditions of transfer so require, but in no case to less than twenty-five kilograms per internee.
Mail and parcels addressed to their former place of internment shall be forwarded to them without delay.
The commandant of the place of internment shall take, in agreement with the Internee Committee, any measures needed to ensure the transport of the internees' community property and of the luggage the internees are unable to take with them in consequence of restrictions imposed by virtue of the second paragraph.