Porton Down experts unable to verify precise source of novichok

Defence lab unable to definitively say where nerve agent that poisoned Sergei Skripal and his daughter came from

British scientists at the Porton Down defence research laboratory have not established that the nerve agent used to poison Sergei and Yulia Skripal was made in Russia, it has emerged.

Gary Aitkenhead, the chief executive of the government’s Defence Science and Technology Laboratory (DSTL), said the poison had been identified as a military-grade novichok nerve agent, which could probably be deployed only by a nation state.

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from The Guardian https://ift.tt/2JgLGPJ