Porton Down experts NOT able to prove Salisbury nerve agent was Russia made

EXPERTS from the Ministry of Defence's Porton Down laboratory have not been able to prove that the nerve agent used to poison Sergey and Yulia Skripal was made in Russia.

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Porton Down has been unable to establish whether the nerve agent was made in Russia

Gary Aikenhead, Chief Executive of the Defence Science and Technology Laboratory at Porton Down, told Sky News: "We were able to identify it as novichok, to identify that it was military-grade nerve agent.

"We have not identified the precise source, but we have provided the scientific info to government who have then used a number of other sources to piece together the conclusions you have come to."

Mr Aikenhead said establishing where the nerve agent was made required "other inputs", some of them intelligence-based, that the Government has access to. 

"It is our job to provide the scientific evidence of what this particular nerve agent is, we identified that it is from this particular family and that it is a military grade, but it is not our job to say where it was manufactured."

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