Part III : Captivity #Section V : Relations between prisoners of war and the authorities #Chapter 3 : Penal sanctions with regard to prisoners of war #II. Disciplinary punishments - Art. 54.
Art. 54. Imprisonment is the most severe disciplinary punishment which may be inflicted on a prisoner of war.
The duration of any single punishment shall not exceed thirty days.
This maximum of thirty days shall, moreover, not be exceeded in the event of there being several acts for which the prisoner is answerable to discipline at the time when his case is disposed of, whether such acts are connected or not.
Where, during the course or after the termination of a period of imprisonment, a prisoner is sentenced to a fresh disciplinary penalty, a period of at least three days shall intervene between each of the periods of imprisonment, if one of such periods is of ten days or over.