Related Rule
Mali
Practice Relating to Rule 70. Weapons of a Nature to Cause Superfluous Injury or Unnecessary Suffering
Mali’s Army Regulations (1979) provides that, under the laws and customs of war, it is prohibited “to use any means [of warfare] that causes unnecessary suffering and damage”. 
Mali, Règlement du Service dans l’Armée, 1ère Partie: Discipline Générale, Ministère de la Défense Nationale, 1979, Article 36.
Under Mali’s Penal Code (2001), “employing weapons, projectiles, materials and methods of warfare which are of a nature to cause superfluous injury or unnecessary suffering … provided that such means are the subject of a comprehensive prohibition” is a war crime in international armed conflicts. 
Mali, Penal Code, 2001, Article 31(i)(20).