As has been pointed out elsewhere, 'Novichok' nerve agent (if it exists!) is 150,000 times more potent than Chlorine gas used in the First World War.
So the question immediately arises how it was possible for there to be such widespread contamination (allegedly) in at least three private and public premises, some distance apart, whilst affecting - let alone killing - no one other than the two principal victims? (Two policemen were apparently affected but by what degree and suffering what symptoms remains a mystery)
We have the conflicting and seemingly contradictory story lines of widespread contamination, with very limited specificity. This neither makes sense or accords with the action of such an incredibly potent nerve agent.
Nor have we heard anything very specific from the results of the biological samples taken from the Skripals, sanctioned by a High Court Judge (Mr Justice Williams)
Indeed it rather confirms Craig Murray's assertion that much less was known about the substance than Mrs May claimed to the House of Commons.
i) CC: Porton Down Chemical and Biological Analyst Blood samples from Sergei Skripal and Yulia Skripal were analysed and the findings indicated exposure to a nerve agent or related compound. The samples tested positive for the presence of a Novichok class nerve agent or closely related agent.
Of course this is very different from knowing it was 'Novichok', let alone administered by agents of the Russian State.
CCTV footage believed to show Sergei , and his daughter Salisbury.
This fundamental problem is compounded by the fact we are led to believe, on the back of a very dubious video clip - that could of course been subject to manipulation - the Skripals were quite fit and healthy less than half an hour prior to being affected on the bench, as they walked unaided through a nearby shopping centre.
This might be explained if they were contaminated in some way between the two points of time, but if this was what happened, it certainly cannot be reconciled to the widespread prior contamination of the premises referred to.
So both these circumstances tend to mitigate AGAINST a potent nerve agent administered much earlier. It also of course make a nonsense of the highly advertised use of protective clothing and breathing apparatus long after unprotected people had been on scene.
The circumstances and symptoms, such as we are aware of, point far more closely to a delayed poison, with initially narcotic properties, administered orally, I would humbly suggest.
We now hear via the BBC that the door to the Skripal's was heavily contaminated with the nerve agent! Rather than solving the above questions, it adds to them.
What of all the unaffected people who have handled the door since? How can this detail fit with the widespread contamination and absence of ill-effects, given that just a pin prick of the substance would be fatal?
Did YOU ever see an elephant fly?