Related Rule
Practice Relating to Rule 72. Poison and Poisoned Weapons
Ecuador’s Naval Manual (1989) states: “Poisoned projectiles are considered illegal, owing to their alteration, as are any other munitions covered with poison.” 
Ecuador, Aspectos Importantes del Derecho Internacional Marítimo que Deben Tener Presente los Comandantes de los Buques, Academia de Guerra Naval, 1989, § 9.1; see also § 9.1.1.