Соответствующая норма
Yugoslavia, Socialist Federal Republic of
Practice Relating to Rule 72. Poison and Poisoned Weapons
The Socialist Federal Republic of Yugoslavia’s Military Manual (1988) provides:
It is forbidden to use poison or poisoned weapons. This includes, for example, the use of poisonous bullets. Poisoning of drinking water, food, etc., is not forbidden but it must be announced or marked. 
Yugoslavia, Socialist Federal Republic of, Propisi o Primeri Pravila Medjunarodnog Ratnog Prava u Oruzanim Snagama SFRJ, PrU-2, Savezni Sekretarijat za Narodnu Odbranu (Pravna Uprava), 1988, § 98.
Under the Socialist Federal Republic of Yugoslavia’s Penal Code (1976), as amended in 2001, the use of, or the order to use, “means or methods of combat prohibited under the rules of international law, during a war or an armed conflict” is a war crime. 
Yugoslavia, Socialist Federal Republic of, Penal Code, 1976, as amended in 2001, Article 148(1).
The commentary on this provision states: “The following weapons and means of combat are considered to be prohibited: … different kinds of poison and poisonous weapons.” 
Yugoslavia, Socialist Federal Republic of, Penal Code, 1976, as amended in 2001, commentary on Article 148(1).