permission

... They shall have permission to read and write, likewise to send and receive letters. Parcels and remittances of money, however, may be withheld from them until the completion of the punishment; they shall meanwhile be entrusted to the prisoners' representative, who will hand over to the infirmary the perishable goods contained in such parcels. ...

... The physician or surgeon of the same nationality as the prisoners who present themselves for examination by the Mixed Medical Commission, likewise the prisoners' representative of the said prisoners, shall have permission to be present at the examination. ...

... Representatives or delegates of the Protecting Powers shall have permission to go to all places where prisoners of war may be, particularly to places of internment, imprisonment and labour, and shall have access to all premises occupied by prisoners of war; they shall also be allowed to go to the places of departure, passage and arrival of prisoners who are being transferred. They shall be able to interview the prisoners, and in particular the prisoners' representatives, without witnesses, either personally or through an interpreter. ...