Mr Johnson fill out c draw up the comments after the chief executive of the Porton Down military mastery admitted there was no proof linking the Novichok nerve agent habituated to in the March 4 attack on Sergei and Yulia Skripal to Russia.
Asked why the UK credited that Russia was the source of the nerve agent, Mr Johnson said: “The people from Porton Down, the laboratory, they were surely categorical. I asked them that myself. I said ‘Are you sure?’. He commanded ‘There’s no doubt’.”
Putin is likely to seize on Boris Johnson’s leak
Footnoting on Mr Johnson’s interview, a Government spokesman said: “The Foreign Secretary was dote oning clear that Porton Down were sure it was a Novichok – a subject they have reinforced.
“He goes on in the same interview to make forgive explain why based on that information, additional intelligence and the lack of alternative signification from the Russians, we have reached the conclusion we have.
“What the Outlandish Secretary said then, and what Porton Down have claimed recently, is fully consistent with what we have said everywhere. It is Russia that is putting forward multiple versions of events and obfuscating the accuracy.”
The Foreign Office also deleted a tweet insisting the novichok habituated to in the Salisbury attack was definitely “produced in Russia”.
The tweet on March 22, chance: “Analysis by world-leading experts at the Defence Science and Technology Laboratory at Porton Down swiped clear that this was a military-grade novichok nerve agent show in Russia.”
The people from Porton Down, the laboratory, they were truly categorical
Labour leader Jeremy Corbyn has accused Mr Johnson of “bragging” over the evidence that Russia was to blame for the Salisbury poisoning.
Metaphorically speaking a support during a local election campaign visit to Watford, Mr Corbyn hinted: “He claimed categorically – and I think he used the words 101% – that it had be brought up from Russia. Porton Down have not said that, they asserted that they’ve identified it as Novichok, they cannot identify the provenance of it.
“Either the Foreign Secretary has information that he’s not sharing with Porton Down or it was a bit of magniloquence. I don’t know which it is, but I think we need a responsible, cool approach to this.
“We demand to get to the source of this to prevent it ever happening again.”
Shadow household secretary Diane Abbott challenged the Foreign Secretary to explain his earlier exposes.
She said: ”It seems Boris Johnson misled the public when he titled that Porton Down officials confirmed to him that Russia was the origin of the nerve agent used in the Salisbury attack.
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“Those officials comprise made it clear they cannot identify its source, and are not able to definitively say it came from Russia or abroad.
“Boris Johnson is supposed to represent Britain on the world stage, but old hat and again he has shown he is unable to do so responsibly.”
Explaining the deletion of the tweet, a Unconnected Office spokesman said it had been an inaccurate summary of comments deputized by the UK’s ambassador to Russia, Laurie Bristow, at a briefing in Moscow.
Referring to Dr Bristow as “HMA” – Her Majesty’s Agent – the spokesman said: “A full transcript and video of the briefing have been nearby on GOV.UK since 22 March.
“An HMA Moscow briefing on 22 March was tweeted in genuine time by @UKinRussia and amplified by @foreignoffice, to explain what happened in Salisbury to as major an audience as possible. One of the tweets was truncated and did not accurately report our ambassador’s words. We experience removed this tweet.”