Соответствующая норма
Dominican Republic
Practice Relating to Rule 70. Weapons of a Nature to Cause Superfluous Injury or Unnecessary Suffering
The Dominican Republic’s Military Manual (1980) instructs troops: “Remember that any method of warfare which causes unnecessary injury or suffering is prohibited.” It adds: “The law of war does not allow you to alter your weapons in order to cause unnecessary injury or suffering to the enemy.” 
Dominican Republic, La Conducta en Combate según las Leyes de la Guerra, Escuela Superior de las FF. AA. “General de Brigada Pablo Duarte”, Secretaría de Estado de las Fuerzas Armadas, May 1980, p. 5.