In the latest CBWNet working paper, Ralf Trapp discusses the mechanisms for investigating the use of chemical and biological weapons and the development of scientific capacity for such investigations. The author highlights the importance of investigations in determining if a chemical or biological weapon was used, the type of agent used, and the origin of the weapon. The OPCW and the UN Secretary General's Mechanism have set up systems with designated laboratories to investigate such allegations. However, there are still significant scientific challenges to be addressed, including validation of methods, agreed acceptance criteria, and distinguishing between natural and deliberate events. The paper emphasizes the need for continued investment and attention from governments to make progress in this field.

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