Only OPCW can comment this assertion. But we can repeat what we stated 10 days ago: We have no doubt that Porton Down has identified Novichock. PD - like Spiez - is a designated lab of the OPCW. The standards in verification are so rigid that one can trust the findings. #Skipal pic.twitter.com/3xp3dBFAdP

— Spiez Laboratory (@SpiezLab) April 14, 2018