Talk:Poisoning of Sergei Skripal

Skripal and Steele dossier
I do not think Skripal' played a big role in Steele dossier. He is not a 'trusted compatriot', obviously, and even less an insider like 'a former intelligence officer still active in Kremlin', or 'a senior Russian Foreign Ministry figure', etc (in Steele dossier open version, info is attributed to trusted compatriots who are friends of insiders, or some auxiliary figures like hotel workers with allegedly first-hand knowledge
 * Source E provided an introduction for a company ethnic Russian operative to Source F, a female staffer at the hotel when TRUMP had stayed there, who also confirmed the story.--here I am not getting the language, what's the  'company'  that operative is working for?
 * "Company" in the Steele dossier refers to Steele's company "Orbis Business Intelligence". -- Petri Krohn (talk) 23:40, 8 March 2018 (UTC)

Not being an insider or trusted friend, his role is at most minimal. On top of it, the report is pretty ridiculous and I think nobody took it too seriously. So what's the point going after Skripal, for his (alleged) role in the report? This would create much more damaging to Russia situation than Steele report itself--Resup (talk) 23:23, 8 March 2018 (UTC)
 * What would be the point of accusing Trump of murdering Skripal? Gee! Maybe Trump and Putin murdered him together!
 * Quote: ''The dossier has sparked a formal investigation in the US into Russian collusion in the US presidential election, to the fury of both presidents Trump and Putin.
 * ''If the Kremlin believed that Col Skripal might have helped with the compilation of the dossier, it could explain the motive for the assassination attempt in Salisbury town centre.
 * -- Petri Krohn (talk) 23:44, 8 March 2018 (UTC)

'Gift'?

 * Poisoned Russian spy Sergei Skripal’s daughter Yulia could have unwittingly released nerve agent after opening gift ‘from friends’ - The Sun, March 8, 2018
 * A theory not totally without merits, but unlikely. Bringing gifts is traditional; tainting a gift does not require sending operatives; it lowers threshold and may be attempted as personal revenge (say, by somebody directly affected by his actions, as it is said that he passed list of Russian agents to British services). But unlikely, everybody is aware of such possibility, even more so a former intelligence officer, and his daughter is enough of an adult and was with him long enough to know, too. I believe the occasion was anniversary of his son death, who had sudden liver failure, and poisoning suspected. It is unlikely that they will celebrate the event by drinking or eating something of uncertain origin, that would be odd. A gift is most likely opened at home well before the collapse, not taken to a restaurant (where it is said that traces found, and which is a likely place for poisoning to occur). Also, that 'gift' will be found and quite likely traced (assuming no false flagging). If it is traced to Russia, it can be brought to a Russian court, and cooperation is not out of the question. --Resup (talk) 08:28, 11 March 2018 (UTC)


 * Let's say there were two gifts, one left at the house and one taken to the restaurant; and Rozzer got poisoned when he inspected the remaining gift, or at least the packaging.
 * I'm guessing the gift was opened on the park bench and not before. I'm also guessing the poison wasn't that common as there would have been some official statement - rather that wild-arsed self-publicising guesses by HBG and equally self-serving vacuum filling rambling by Kaszeta. --Charles Wood (talk) 08:43, 11 March 2018 (UTC)

Flowers?

 * Was Russian spy poisoned by flowers? Chemical experts examine bouquet left by the double agent at his wife's grave -Daily Mail, March 10, 2018
 * Russian spy poisoning probe 'focusing on flowers he took to wife's grave' amid claims nerve agent found at restaurant -The Mirror, March 11, 2018
 * That seems unusual, fresh flowers coming from a 'friend'. 'Women's day' (March 8) approaching, could not resist?  But it is said that the placed the flowers on the grave some time (few hours) before they collapsed. Not impossible, but not very convincing either, unless confirmed by tests. Tabloids do not say who the 'friend' was, or from which side of the iron curtain. --Resup (talk) 15:47, 11 March 2018 (UTC)

Litvinenko again
One thing that is common to the Skripal and Litvinenko cases is that traces of poison were found in multiple places, all of which could not be explained by a single act of poisoning. Litvinenko met Mario Scaramella in a sushi restaurant in Piccadilly before he met Andrey Lugovoy and Dmitry Kovtun at the the Millennium Hotel. Both places had traces of Polonium 210.

Finding traces in multiple places unconnected to the assassination itself may be a sign that the traces were left intentionally as fake evidence. -- Petri Krohn (talk) 19:49, 11 March 2018 (UTC)


 * Litvinenko case may be different, or whatever, and I do not feel like going into it (not having anything to contribute too). Yet I note the official inquiry position: there were two poisoning incidents with Litvinenko, the first is much weaker, and estimated by hair growth to be some weeks earlier. While on October 16, 2006 he had a business meeting with Tim Reiley and the prime official suspects attending (6.87--6.101). They minus Reiley went to Itsu after that. Office where they met was found to be contaminated, and the officiial report attributes Itsu contamination to the same source (ie apparently 16 October, not Scaramella meeting of 1 November. Report also claims that a different table was contaminated (table they sat was provided by Scaramella) --Resup (talk) 21:22, 11 March 2018 (UTC)

Russia publishes documents about British protection of criminals
Russian prosecutor general Chaika announced that there were some communications between Russian and British authorities (headed at the time by Teresa May), to do with Berezovsky and Litvinenko, in particular alleging that warning on Litvinenko safety was given prior to his death, allegedly not acted on. Documents publications were promised, and the first document now appeared, about somebody V. Terliuk. According to Russian authorities letter, addressed/sent to Theresa May, Berezovsky and his associates Litvinenko and Goldfarb attempted to bribe or threaten Terliuk to force him making a fake confession of working for Russian special services and preparing Berezovsky murder, in order for Berezovsky to get refugee status in UK; and when Terliuk refused and reported them to the Scotland Yard, he was accused of the above plot by those people. The letter goes on to say that Terliuk was threatened and attacked and needs to be protected. Allegedly similar request was made in some other letters concerning Litvinenko, but this is not in the letter now published. (They also apparently try to draw attention to the fact that Berezovsky should not have been given refugee status and handed to the Russian authorities to answer some charges) --Resup (talk) 12:39, 9 April 2018 (UTC)


 * Interesting. There seems to be a whole series of articles on RIA, all from today or yesterday. Here:
 * https://ria.ru/world/20180408/1518161609.html (Announcement)
 * https://ria.ru/world/20180409/1518200713.html (Another document from 2006 about Terliuk)
 * https://ria.ru/world/20180409/1518200548.html (Terliuk beaten up)
 * there's also a link to where the documents are apparently uploaded, a telegram page which wants me to login: https://web.telegram.org/#/im?p=@genprocrf
 * So the key seems to be that the British knew since years that Berezovsky's reasons for getting Asylum were faked by trying to use this guy and others at the time of the Litvinenko affairs. Details lost in auto-translation but hopefully more to come, also in English. --CE (talk) 13:59, 9 April 2018 (UTC)


 * I am not sure what to make of it, on the face value it may be sort of embarrassing for an old school politician, but it may be not what it seems. Berezovsky was very deeply into politics with all sides playing very rough; he was a master puppeteer in very rough waters, to the extend that people who know him well are unsure whether he was killed, committed suicide, or arranged for his own murder. Without knowing this guy Terliuk, I think impossible to know what was really going on, and I hear the name for the first time. Litvinenko at least told his stories on video, and at least appeared sincere, but whose story is genuine in the above, I can't be really sure. Theresa may say, for example, OK, there was some murky stuff but also Berezovsky was genuinely in danger for some other reason and so it does not matter and he deserved his status. Especially with modern politicians, Teflon Pony and stuff, they will figure out an explanation--what's most relevant today, for the Skripals at hand  --Resup (talk) 14:14, 9 April 2018 (UTC)


 * The timeline seems to be roughly that in 2003 they tried to fake reasons for Berezovky to get asylum (which he got anyway), involving this guy Terliuk who wasn't a Russian citizen, then in 2006 during the Litvinenko affair the Russians reminded the Brits about this case, and then in 2010 somehow they mailed the by-then Home Secretary Theresa about it again? Hmm. --CE (talk) 14:32, 9 April 2018 (UTC)


 * Here is an English-language TASS article about the issue. Among other things it says that Russia sent 39 requests for protection of Terliuk between 2006 and December 2011. Still isn't very helpful for piecing it all together. --CE (talk) 16:52, 9 April 2018 (UTC)


 * Asylum granted to Putin adversary -The Guardian, 11 September, 2003
 * At the time, criminal charges and extradition request against Berezovsky on Avtovaz/Lada case. He and partner accused of stealing over 2000 vehicles. At the time, he is having a 'difference of opinions' with the Russian leadership on the issue of whether he owns them. Despite his talents. not very likely he stole 2000 Ladas with a crow bar; probably Khodorkovsky type situation, some grey-area scheme to sell the vehicles with a profit (perhaps re-exporting or else exporting, despite non-existent open market for anybody else to do the same, or fancier tricks maybe); while perhaps some other grey structure (+ public at large, but it matters only selectively) at loss; short and clean explanation of the case is hard to find. He should have said it is politically motivated, and responded that it is not, with the criminal case still rolling, as usual
 * 2007: found guilty in Russia in Aeroflot case (accused of pocketing large amounts); another extradition request to Britain made
 * 2010, again Avtovaz, not paying under contract, now for 20,000 vehicles, 9 years prison term in abstention, and another extradition request to Britain. More on Russian Wikipedia, largely following the official line. --Resup (talk) 17:08, 9 April 2018 (UTC)

Matthew Puncher

 * Radiation expert, 46, who investigated the 'assassination' of KGB spy Alexander Litvinenko 'killed himself by stabbing his arms and chest repeatedly five months after a trip to Russia' - Daily Mail, November 24, 2016
 * A radiation expert who investigated the 'assassination' of Alexander Litvinenko was found dead five months after a trip to Russia, an inquest heard. Matthew Puncher, 46, bled to death at his home from multiple stab wounds inflicted by two knives.
 * The Man Who Knew Too Much - BuzzFeed, June 19, 2017

Walter Litvinenko

 * Отец бывшего офицера ФСБ Литвиненко, обвинявший в смерти сына Россию, сожалеет о сказанном ('The father of a former FSB officer, Litvinenko, who blamed Russia for the death of his son, regrets what was said')-TV 1 (Russia), February 2, 2012
 * Lives in poverty, regrets his words, asks Russia for forgiveness and help returning to Russia
 * 'Something not right in Salisbury', ПУСТЬ ГОВОРЯТ talk show, TV 1 (Russia), March 20, 2018
 * Blames Goldfarb. Prior to that, claims poisoning happened many times, including the hospital (does not specify by whom, at that point).
 * Lugovoi in studio, makes comments on non-transparency prior to public investigation (~35:00). Walter Litvinenko (father) and Maxim (brother) arrive to the studio ('from Italy'). Walter  gives Lugovoi a touch on the shoulder, 1/2 embrace; he separates brother from Lugovoi; camera goes off to the presenter who draws our attention to that episode expressing surprise how they met the killer and poisoner. Father smiles, brother stays neutral/Mona Lisa'ish. Father goes ahead to tell that he spent the last 3 days of Alexnder life near him at the hospital. Polonium 210 claim made  '1/2 hour after his death', people with respirators/protective suits arrived. A meeting with many people was assembled. Walter Litvinenko tells us that Goldfarb elbowed him for starting to talk too early (blaming Russia for polonium attack, in a passionate manner). They 'walked in' somewhere after the meeting where Walter encountered young Goldfarb wife, weeping 'sitting on a bed'. Walter claims that she said 'Walter, Alex (Goldfarb) killed Alexander (Litvinenko)'
 * A journalist sitting on the same coach as the Litvinenkos and Lugovoi reinforces the message, telling us that nobody in the West, BBC, etc, will reach out to have this sensational recording
 * The program is a regular commercial talk show on a state TV channel.

For the record. This is different matter from Skripal, they do not have to follow the same pattern. I am not really interested in revisiting Litvinenko case (and do not see how, too), or in expressing any opinion, either way. Technical investigation records are not open, public inquiry presumably had access, while we do not. Human stories are humans' stories, and can change for whatever reason or be inaccurate. I note that Russian television made claims blaming Berezovsky or his people earlier. Berezovsky successfully sued for libel in British court in 2010 --Resup (talk) 09:26, 21 March 2018 (UTC)
 * Goldfarb: After the murder of Litvinenko, his father spent several years milking Berezovsky in London. And when he returned to Russia, he changed his testimony - Gordon.ua, March 22, 2018
 * Father of poisoned in England by polonium Litvinenko named the killers of his son - Komsomolskaya Pravda, March 23, 2018
 * (Noted: Walter now lives in Moscow. his claims are in the text form here, otherwise similar to those made on a TV program, above).
 * Here he claims that Goldfarb wife named the killer when they all went to the Goldfarbs' place, after Alexander Litvinenko death. He further says that at that point she was shsh-shshed (told to be quiet) by 'everybody' present, and that  'in one month, she was no more... died for some reason'  (as per source, unconfirmed).

--Resup (talk) 19:23, 24 March 2018 (UTC)

Novichok

 * ''Moved to Talk:Novichok

Kholstov

 * ''Moved to Talk:Novichok

Yulia Skripal audio

 * Телефонный разговор племянницы Скрипаля с его дочкой Юлией - Россия 24 -Russia 24, April 5, 2018
 * Tape said to be of conversation of Victoria Skripal and Yulia Skripal is played on national Russian TV. We are told that the recording came from Victoria Skripal, but 'we do not know who and under what circumstances made the recording'. Presenters tell us that they have some doubts but decided to use their journalistic right/duty to play the tape. The tape is a clean normal colloquial conversation, with nothing standing out at all. Yulia tells that both herself and the father are fine, recovering, and there are no irreversible effects (which suggests that Sergey is not mentally incapacitated). Yulia controls her answers and is not giving details; it is felt that she understands that this may be recorded (but not definitely so). She is given a phone on a temporary basis (apparently). Victoria offers to fly in immediately if she gets a UK visa. Yulia tells that she will not get UK visa, not offering any theory why.
 * It is indeed unclear whether the tape is genuine. The rest is for the sake of the argument, assuming that it is. It seems clear that she was put into medical-induced coma, then woke up. Assuming that Porton Down assessment (Novichok) is correct, this creates an interesting possibility: very low dosage did not kill them at once; they were put on ventilator machine and kept long enough for some ACHE regenerated or re-supplied; then out of the coma. Even without any nerve agent or anything else at all, just medical induced coma for over a week will require lengthy recovery (at least 1 month). They will also have lots of strong drugs and those will be showing on blood tests, even without anything else
 * No element is definitely verified. That may be not Yulia. And it may be not Novichok. And Novichok itself remains controversial/undefined. --Resup (talk)17:52, 6 April 2018 (UTC)
 * Victoria Skripal was in Russia 24 studio a day earlier, April 4, 2018 (video). Victoria is in contact with the British Consulate in Moscow and BBC, trying to get UK visa. On the eve of Easter break (March 29, 2018), acting on advice from the consulate, she had a conversation with a Russian-speaking woman about her visa, and was told to apply. 20 minutes later, it was announced in the news that Yulia regained conscience. Victoria stated in the program that she has no other information about Skripals condition, etc.,  apart from what's in the news. --Resup (talk)18:52, 6 April 2018 (UTC)
 * Russian spy poisoning: Sergei Skripal 'improving rapidly' -BBC, April 6, 2018 (main page) --Resup (talk)18:57, 6 April 2018 (UTC)
 * ''Meanwhile, the UK has refused to grant a visa to Yulia's cousin, Viktoria Skripal, the BBC has learned. A government source said it appears Russia is "trying to use Viktoria as a pawn". It comes after Russian TV aired a recording of an alleged phone conversation between Viktoria and Yulia on Thursday. Doubts were raised over its authenticity but Viktoria has told Newsnight she was 100% certain it was Yulia.

Fentanyl
Fentanyl transdermal patches are available for pain control. So it can obviously cross the skin barrier but probably not quick enough to knock people out (incidentally I've had Fentanyl in medical procedures. It's not that active when administered topically)

There is a chemical derivative of Fentanyl Kolokol-1 which is gaseous and is alleged to have been used in the Moscow Hostage Crisis. It's possible, but probably ineffective in an open air setting --Charles Wood (talk) 08:53, 11 March 2018 (UTC)

A recent case of death from exposure to fentanyl in the United States: -- Petri Krohn (talk) 03:08, 13 March 2018 (UTC)
 * 2 dead, 1 critically injured in possible fentanyl exposure in Fontana home - ABC7, March 9, 2018

Parathion
Parathion, an agricultural chemical, was used as a nerve agent in Rhodesia when it was impregnated on clothing to be picked up and worn by insurgents. Along with Thallium an estimated 1000+ insurgents were killed by these means. It works slowly enough to be considered a possible poison in the Skripal case - though what it was carried on is yet to be determined. --Charles Wood (talk) 18:28, 11 March 2018 (UTC)

Thallium

 * Investigators suspect ex-Russian spy Sergei Skripal was poisoned with a rare heavy metal -Business Insider, March 7, 2018
 * Thallium sulfate, Thallium, toxic, similar to K and interferes with Na/K pump, so kind of 'nerve agent', formerly known as 'rat poison'.
 * --Resup (talk) 15:47, 11 March 2018 (UTC)

Botulinum toxin
See also main page

I now suspect that Sergei Skripal and her daughter are suffering from botulism, caused by the "Risotto Pesce" they ate at the Zizzi restaurant. There was no "novichok agent" involved. The British investigators seem not to have a sample on the nerve agent. They do not know when and where it was administered to the Skripals. They have not identified the container used to transport it into the country or to the attack site. They have no suspects for the assumed attack. Maybe Yulia Skripal brought the nerve agent from Russia, but then it would need to have been in some container the police would have found by now.

Botulinum toxin is a neurotoxic protein with effects somewhat similar to those of nerve agents. It is the most acutely lethal toxin known, with an estimated LD50 of under 2 ng/kg intravenously. There is no evidence for the use of a nerve agent except the words of politicians, and maybe a reading on some mass spectrometer in Porton Down. For all I know the blip can be the result of random impurities, contamination of the environment around Porton Down or simple mass hysteria. -- Petri Krohn (talk) 21:06, 17 March 2018 (UTC)

Tetrodotoxin

 * ''See Tetrodotoxin on Wikipedia

Tetrodotoxin would fit the timeframe of eating seafood risotto at the Zizzi restaurant and getting paralyzed on the park bench.
 * Dog deaths across Suffolk and Norfolk coastline confirmed as Paralytic Shellfish Poisoning - Eleanor Pringle, Ipswich Star, January 30, 2018
 * ''The authority confirmed that the death of a seven-year-old Siberian Husky after eating a shore crab at Felixstowe Ferry in Suffolk earlier this month is likely to have been caused because of this poisoning. Owner Chris Poole, from Kirton, said his dog died within 90 minutes of leaving the beach.


 * Question #1 on the MOA piece about the Policeman effectively demolishes the teterodotoxin argument. Despite lots of other comments trying to work him in somehow. --Charles Wood (talk) 00:45, 7 April 2018 (UTC)

Wrong Identification?
IMO, Botulinum toxin quite unlikely different mechanism and speed of onset, so I guess different symptoms, severity, treatment. Molecule is a protein monster compared to nerve agents, (here), and result is muscle tone weakness while for nerve agent a spasm. It also likely needs incompetence or outright falsification at Porton, and it's unlikely. I'd think there may be false positive bump on GC, less likely on mass spectrometry, ions mass to charge measurement is accurate and a misinterpretation or malfunction needed for this to go wrong; and spectroscopy is very accurate, so it will need a serious misinterpretation. But once they are serious onto confirming the theory, they can do all those tests, and failing them all is not going to happen. Also, they will test for everything, including bacteria, and will find botulinum bacteria. Does not mean that it's definitely fool-proof though, but needs something like this: (1) there is a pesticide out there with chemical structure close enough to pass all the tests which they actually had time to do, and it may be less testing then everything available as they were pressed with time and conclusions Seafood, especially farmed one, is the most polluted food out there, collecting everything. (Or maybe, as a theory, Porton Down somehow produces enough pollution to be detectable by Porton Down itself--Mirzayanov job in the USSR was to guard against similar issues)   (2) bacterial test did not come back yet. That may take weeks, up to a month, farming bacteria in a dish and counting. (3) something else, apparently more sudden and violent then 'normal' botulism, put the victims in their jeopardy, and (4) pretty many of people are eating stuff that looks like a nerve agent to the chemlab nerds --Resup (talk) 22:19, 17 March 2018 (UTC)

Policeman
First mention of seriously ill policeman is 7th March, the same day PHE had issued statement saying only 2 affected

On Tuesday, 6 March, it was confirmed that the Counter Terrorism Policing Network had taken over the lead for the investigation, due to the unusual circumstances and the specialist expertise the network can bring to the investigation. ... -- Diagonal (talk) 13:05, 8 April 2018‎ (UTC)
 * 6th March:
 * The pair were discharged only minor symptoms
 * 7th March:
 * Paul Cosford, Medical Director and Director of Health Protection at PHE said:
 * ''All known first responders have been contacted through their organisations and encouraged to seek further advice should they experience any symptoms. The sites recently visited by the 2 people affected have all been secured and PHE is reminding local clinicians of the symptoms to look out for.
 * ''Based on current evidence the risk to the wider public is low and it is likely that, had any member of the public been exposed to the substance, they would have presented with symptoms by now. However, anyone who was in the area and is concerned because they feel unwell, should dial 111 or 999 depending on the severity of their symptoms.
 * Assistant Commissioner Mark Rowley, the head of Counter Terrorism Policing, said:
 * ''"Having established that they were exposed to a nerve agent we are now treating this as a major incident involving an attempted murder by the administration of a nerve agent.
 * ''"Two people remain in hospital in a critical condition. A police officer who was among the first responders also remains in hospital in a serious condition and is continuing to receive intensive care. We are keeping the Chief Constable in Wiltshire regularly updated in relation to our investigation.
 * 8th March
 * Policeman is named

“Highly complex”
The Financial Times writes:
 * ''Clips of Mr Skripal’s car driving through Salisbury have been released, but no pictures of any individuals that are being sought.
 * ''A spokesperson for the Metropolitan Police said nothing should be read into this and that no information would be released unless it helps the “highly complex” inquiry.

“Highly complex” is a code word and means that normal legal and investigative procedures are not followed and the investigation should not endanger the predetermined outcome. -- Petri Krohn (talk) 12:06, 21 March 2018 (UTC)

Who is Ross Cassidy?
The name sounds awfully American. But other sources hint that Cassidy was Skripal's MI6 or MI5 handler in Britain. He was "a close friend of Sergei Skripal" and a close neighbor when Skripal rented his first house Salisbury. Ross Cassidy picked Yulia from the airport with his Japanese pick-up truck. Some sources said that this was his fists car after he arrived in the country. Where did he come from? Ireland or America? When? Note the formal and evasive language. Sounds like a police officer or an MI5 operative. -- Petri Krohn (talk) 15:56, 21 March 2018 (UTC)
 * Vehicle used to pick up Yulia Skripal from airport seized for forensic tests - The Telegraph, March 19, 2018
 * Did treacherous past of Russian colonel finally catch up with him in Salisbury? - The Telegraph, March 6, 2018 (with photos, print version)
 * ''The colonel’s close friend Ross Cassidy, who lives just a few doors from the property the Russian rented when he first arrived in Salisbury, said he “was not at liberty to talk.”
 * ''He declined to say whether his friend had spoken of fears for his life, adding: “It’s a very sensitive investigation of some gravitas. I really am unable to divulge any information at the moment.”

Who was Joseph Edward Cassidy?
This may be just an odd coincidence, but is related to our study anyway.

In Operation Shocker started in 1959 U.S. Army First Sergeant Joseph Edward Cassidy leaked disinformation to the Soviets about U.S. chemical weapons programs. This might be his grave: command sergeant major (CSM) Joseph Edward Cassidy (1920-2011). Is Joseph Edward Cassidy in any way related to Ross Cassidy?

Suspects?

 * 'Teresa May'-type version
 * USSR/Russia developed or produced Novichok, has expertise
 * Involved in hit jobs in the past
 * Revenge for a treason is a motive
 * 'Putin did it'


 * 'Walter Litvinenko'-type version
 * Enemy of Putin or Russia did it, possibly an alliance of a non-public oligarch ('Berezovsky-2' or non-Russian anti-Russians) + special services, in any mix of those, or alone.


 * Denis Dementyev Julia Skripal's boyfriend and alleged Russian Intelligence operative - see comment by Richard Compton. Possibly it was Dementyev's mother instead - see comment also about allegations by Viktori Skripal. --Charles Wood (talk) 00:59, 25 March 2018 (UTC)

Also noted (about non-suspects)

 * Also noted: scientists involved or knowledgeable about CW are underfunded; some may be seeking income ('Leonid Rink'-type), others may have left science for some sort of small business. Likely majority of them, apart from the top brass, are in non-system opposition to the state, pro-Western, and pro-Ukrainian ('Vladimir Uglev'-type). Reported storage of the research quantities of various substances is OK for expert handling but not super-secure. I am not at all saying that scientists has anything to do with it, --they are not, and they are surely disgusted and horrified by what has happened; but all the above creates a lax environment which may be exploited by a determined enemy or criminal (there was one well-known case of crime committed using those substances).

--Resup (talk) 18:49, 24 March 2018 (UTC)

Nerve agent samples?
Do the investigators have any samples of the alleged nerve agent?

The press coverage gives the impression that there are traces of the nerve agent everywhere, but I think it is more likely that the investigators have not been able to recover a single sample from the environment. Michael Kobs sums up the argument on Twitter:
 * In fact all these alleged traces are debunked by the strange MI5 theory of a mini drone hovering above the bench. Any earlier trace would 100% exclude the drone theory while the drone theory excludes any knowledge of any earlier trace.

It seems that the determination of a novichok type of nerve agent is made solely based on blood samples. These show a breakdown product that can be linked to some novichok type. Most likely this marker is similar to IMPA, having lost its lethality and fluoride atom but maintaining the skeletal molecule structure of the original agent. -- Petri Krohn (talk) 19:20, 24 March 2018 (UTC)

Comment on IMPA:

DDTea says:

"Also, IPMA does not bind strongly to acetylcholinesterase. It’s water soluble, and would be washed out with urine. It does not bioaccumulate to any appreciable degree. So it’s difficult to imagine this giving a positive result in the enzyme reactivation test."

https://timhayward.wordpress.com/2018/04/01/update-to-briefing-note-doubts-about-novichoks/#comments

Literature references
See also: Full UN meeting video, with bi-lingual audio, April 5, 2018 here.
 * Arthur Conan Doyle, early on, entered by Russia, implying rush to judgment as opposed to Sherlock Holmes approach.Foreign Office: Allowing Russian scientists into an investigation would be like Scotland Yard inviting in Professor Moriarty.
 * Fyodor Dostoevsky. 'Crime and Punishment': Boris Johnson: 1, 2 ‘We are all confident of the culprit – and the only question is whether he will confess or be caught’. Nebenzya at UN: the novel is in fact not about this. It is not a detective story, as British FM apparently thinks, but a deep philosophical  (мировоззренческое: system of World's concepts) work of literature. We already quoted from that novel an (English) proverb, a 100 rabbits will never make a horse (and a hundred suspicions will never make a proof'). I would also advice Mr. Johnson to read other Dostoevsky's novels, or at least get acquainted with their titles; I won't reproduce those.
 * 'Dead cat on the table', referred to by Nebenzya, explained by Boris Johnson
 * 'Alice in the Wonderland' (White Rabbit at the court), read by Nebenzya at the UN (" There is more evidence to come yet, please your Majesty," said the White Rabbit, jumping up in a great hurry, " this paper has just been picked up." ... it seems to be a letter written by the prisoner to somebody."..."Are they in the prisoner's handwriting?" "No, they're not,"..." He must have imitated somebody else's hand," said the King.  ..There's no name signed at  the end of it."  " If you didn't sign it, that makes the matter worse. You must have meant some mischief..." That proves his guilt," said the Queen. " That's the most important piece of evidence we've heard yet," said the King, rubbing his hands, "so let the jury now consider their verdict." " No, no," said the Queen, " Sentence first, verdict afterwards."; earlier  appearance here)
 * --Resup (talk) 09:58, 7 April 2018 (UTC)