Samples collected in connection with the investigation into an apparent nerve agent attack in Salisbury on March 4, 2018, were taken to be analysed Porton Down science park, which houses Britain’s Ministry of Defence’s Defence Science and Technology Laboratory.
The head of the British military facility analysing the Novichok nerve agent used to poison former Russian spy Sergei Skripal and his daughter said Tuesday it has “not identified the precise source” of the substance.
Gary Aitkenhead, chief executive of the Porton Down defence laboratory, told Britain’s Sky News that analysts had identified it as military-grade Novichok, but they had not proved it was made in Russia.
“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,” he said. Read more.