Соответствующая норма
Brazil
Practice Relating to Rule 160. Statutes of Limitation
In 1967, during a debate in the Third Committee of the UN General Assembly on the question of the punishment of war criminals and of persons who had committed crimes against humanity, the representative of Brazil stated: “The principle of non-applicability of statutory limitation to war crimes and crimes against humanity was a new principle for many countries, including his own, where the law recognized statutory limitations in criminal matters.” 
Brazil, Statement before the Third Committee of the UN General Assembly, UN Doc. A/C.3/SR.1547, 12 December 1967, § 28.