Соответствующая норма
Brunei Darussalam
Practice Relating to Rule 74. Chemical Weapons
In 1989, in a reply to a note verbale of the UN Secretary-General on the subject of chemical weapons, Brunei Darussalam declared that it did not possess chemical weapons. 
Brunei Darussalam, Reply to a note verbale of the UN Secretary-General, referred to in Report of the Secretary-General on respect for the right to life: elimination of chemical weapons, prepared in accordance with UN Sub-Commission on Human Rights Resolution 1988/27, UN Doc. E/CN.4/Sub.2/1989/4, 17 August 1989, § 98.