Sarah Clapham is a Principal Scientist at the Defence Science and Technology Laboratory (Dstl) and works on the Chemical and Biological Elimination Project. After completing a PhD in organometallic chemistry in labs in the UK and France, Sarah joined Dstl in 2007 as an arms control advisor. She spent 10 years acquiring an in-depth understanding of the Chemical Weapons Convention and was particularly involved in the UK’s declarations, chemical licensing regime and industry inspections. During this time, Sarah was also a technical advisor to the UK delegation at the Organisation for the Prohibition of Chemical Weapons in The Hague. She provided advice on the elimination of the Syrian chemical weapon stockpile and played a key role in the destruction of certain Syrian precursors in the UK. Sarah also provided technical advice and project management to the Global Partnership project to assist Russia in building chemical weapons destruction facilities in Shchuch’ye and Kizner.