Skripal Salisbury Novichok Attack (Mar 2018)
Introduction
On 4 March 2018, Sergei Skripal — a former colonel in Russian military intelligence (GRU) who had worked as a double agent for British intelligence before being exchanged in a 2010 spy swap — and his daughter Yulia were found slumped on a bench in Salisbury city centre, England. Both were unconscious. They were admitted to hospital in critical condition. UK investigators and Porton Down scientists identified the poisoning agent as novichok A-234, a nerve agent from the Soviet-era Novichok programme, variants of which had also been used later in the Navalny poisoning.
The Attack and Aftermath
Sergei and Yulia Skripal survived after weeks in critical care, though both suffered serious and lasting health consequences. A police officer, Detective Sergeant Nick Bailey, who responded to the scene was also hospitalised with novichok exposure but survived. The most serious casualty was Dawn Sturgess, a local woman who had no connection to the Skripals: her partner Charlie Rowley found a discarded Nina Ricci perfume bottle in Salisbury that had been used to transport the novichok. Sturgess applied what she believed to be perfume to her wrist and died on 8 July 2018 — the only fatality directly attributed to the attack.
OPCW Confirmation
The Organisation for the Prohibition of Chemical Weapons independently verified the identification of novichok A-234 through samples taken from the Skripals, DS Bailey, and from environmental samples in Salisbury. The OPCW's finding corroborated those of Porton Down and was shared with member states. The UK government expelled 23 Russian diplomats; allied governments expelled further Russian diplomats in solidarity.
Identification of the Perpetrators
UK police and intelligence services identified the two primary operatives from CCTV footage, hotel records, and travel documents. They had travelled under the cover names Alexander Petrov and Ruslan Boshirov. Bellingcat and the Insider subsequently identified them by their real identities: Anatoliy Chepiga, a GRU colonel and Hero of the Russian Federation decorated by Putin, and Alexander Mishkin, a GRU military doctor. A third individual, Denis Sergeev, travelling as Sergey Fedotov, was identified as the senior GRU Unit 29155 handler who coordinated the operation.
The Cathedral Interview
In a now-infamous interview on the Russian state broadcaster RT, Chepiga and Mishkin — appearing under their cover names — claimed they had travelled to Salisbury as tourists to visit its famous medieval cathedral. They said they had made the trip twice in one weekend because their first visit had been disrupted by snow. The interview was widely ridiculed internationally as transparently implausible and became a symbol of Russian disinformation brazenness. Putin initially endorsed the men as "civilians" with "no connection whatsoever" to the government.
GRU Unit 29155
Bellingcat's investigation established that the Unit 29155 team responsible for the Salisbury attack had been linked to other suspected assassination attempts and destabilisation operations across Europe. Chepiga's decoration as Hero of the Russian Federation — a presidential award — corroborated investigative findings that the operation had high-level state authorisation. The unit was subsequently designated a sanctions target by the UK and allied governments.
Verdict
Confirmed. OPCW independently confirmed novichok A-234. UK police identified GRU Unit 29155 operatives through forensic and open-source investigation, corroborated by Bellingcat's identification of Chepiga and Mishkin by real name and military record. The use of a state-produced nerve agent by serving GRU officers confirms state direction. The death of Dawn Sturgess from secondary exposure to the discarded delivery mechanism adds to the gravity of the confirmed state assassination attempt.
Evidence Filters10
OPCW independently confirmed novichok A-234
SupportingStrongThe Organisation for the Prohibition of Chemical Weapons independently verified the identification of novichok A-234 from samples taken from the Skripals, DS Nick Bailey, and environmental samples in Salisbury, corroborating Porton Down findings.
Bellingcat identified Chepiga and Mishkin by real name and military record
SupportingStrongBellingcat and the Insider identified the operatives travelling as 'Boshirov' and 'Petrov' as GRU officers Anatoliy Chepiga (Hero of the Russian Federation) and Alexander Mishkin. Military records and database searches corroborated the identification.
Chepiga is a decorated Hero of the Russian Federation
SupportingStrongAnatoliy Chepiga was awarded the Hero of the Russian Federation — Russia's highest state honour, conferred by the president — corroborating investigative findings that the Salisbury operation had presidential-level authorisation.
Dawn Sturgess died from secondary exposure to delivery mechanism
SupportingStrongDawn Sturgess, a Salisbury resident with no intelligence connection, died on 8 July 2018 after her partner found the discarded novichok delivery bottle and she applied it believing it was perfume. Her death from the same agent confirms the weapon's presence and lethality.
Third operative Denis Sergeev identified as GRU Unit 29155 handler
SupportingBellingcat identified a third individual, Denis Sergeev travelling as Sergey Fedotov, as the senior GRU Unit 29155 officer coordinating the Salisbury operation from Moscow, establishing a command chain above the two street-level operatives.
Suspects gave implausible cathedral-tourist cover story on RT
SupportingIn an RT interview, Chepiga and Mishkin — appearing as Boshirov and Petrov — claimed they had travelled to Salisbury twice in one weekend to visit the cathedral and were impeded by snow. The story was widely regarded as implausible and became emblematic of Russian disinformation.
Russia denied involvement and described inquiry as politicised
DebunkingWeakRussia denied any state involvement, with Putin claiming the operatives were private citizens with no government connection. Russia described the UK investigation and allied diplomatic response as politically motivated.
Rebuttal
Putin's claim that the identified GRU colonel decorated with the Hero of the Russian Federation was a private civilian with no government connection was not credible. The RT interview itself confirmed the operatives' presence in Salisbury on the relevant dates.
Sergei Skripal's intelligence history cited as potential alternative motive
DebunkingWeakSome alternative framings suggest Skripal's past as a double agent created enemies beyond the Russian state, or that the timing was designed to embarrass Russia before the 2018 World Cup. No evidence supports any non-Russian-state perpetrator.
Rebuttal
Skripal had been exchanged in a 2010 spy swap and was no longer operationally active. The specific weapon — novichok A-234 — is a state-programme-only substance. No evidence of any alternative perpetrator has been produced despite extensive public investigation.
Russia's Denial of GRU Unit 29155 Attribution Remains Officially Unresolved
NeutralThe UK identified the suspects as Colonel Anatoliy Chepiga and Dr. Alexander Mishkin based on passport analysis, travel records, and open-source investigation by Bellingcat — later confirmed by investigative journalists including Christo Grozev. Russia has not acknowledged GRU Unit 29155's existence or provided alternative accounts of the suspects' identities consistent with their documented travel. However, the identification rests primarily on passport and travel documentation obtained through non-judicial means, meaning formal extradition proceedings have not produced a trial that would subject the evidence to adversarial scrutiny in a court of law.
Dawn Sturgess Secondary Exposure Complicates Attribution Chain Without Weakening Core Finding
NeutralDawn Sturgess's death in July 2018 from Novichok exposure — after her partner Charlie Rowley found a discarded perfume bottle used in the Skripal attack — extended the attack's consequences beyond the original targets. The perfume-bottle disposal reflects operational carelessness rather than intent to kill Sturgess, which the UK public inquiry chaired by Lord Hughes (ongoing as of 2025) is examining. This secondary casualty complicates the operational narrative without materially affecting attribution of the Skripal attack to GRU Unit 29155, since the same Novichok batch connects both incidents forensically.
Evidence Cited by Believers6
OPCW independently confirmed novichok A-234
SupportingStrongThe Organisation for the Prohibition of Chemical Weapons independently verified the identification of novichok A-234 from samples taken from the Skripals, DS Nick Bailey, and environmental samples in Salisbury, corroborating Porton Down findings.
Bellingcat identified Chepiga and Mishkin by real name and military record
SupportingStrongBellingcat and the Insider identified the operatives travelling as 'Boshirov' and 'Petrov' as GRU officers Anatoliy Chepiga (Hero of the Russian Federation) and Alexander Mishkin. Military records and database searches corroborated the identification.
Chepiga is a decorated Hero of the Russian Federation
SupportingStrongAnatoliy Chepiga was awarded the Hero of the Russian Federation — Russia's highest state honour, conferred by the president — corroborating investigative findings that the Salisbury operation had presidential-level authorisation.
Dawn Sturgess died from secondary exposure to delivery mechanism
SupportingStrongDawn Sturgess, a Salisbury resident with no intelligence connection, died on 8 July 2018 after her partner found the discarded novichok delivery bottle and she applied it believing it was perfume. Her death from the same agent confirms the weapon's presence and lethality.
Third operative Denis Sergeev identified as GRU Unit 29155 handler
SupportingBellingcat identified a third individual, Denis Sergeev travelling as Sergey Fedotov, as the senior GRU Unit 29155 officer coordinating the Salisbury operation from Moscow, establishing a command chain above the two street-level operatives.
Suspects gave implausible cathedral-tourist cover story on RT
SupportingIn an RT interview, Chepiga and Mishkin — appearing as Boshirov and Petrov — claimed they had travelled to Salisbury twice in one weekend to visit the cathedral and were impeded by snow. The story was widely regarded as implausible and became emblematic of Russian disinformation.
Counter-Evidence2
Russia denied involvement and described inquiry as politicised
DebunkingWeakRussia denied any state involvement, with Putin claiming the operatives were private citizens with no government connection. Russia described the UK investigation and allied diplomatic response as politically motivated.
Rebuttal
Putin's claim that the identified GRU colonel decorated with the Hero of the Russian Federation was a private civilian with no government connection was not credible. The RT interview itself confirmed the operatives' presence in Salisbury on the relevant dates.
Sergei Skripal's intelligence history cited as potential alternative motive
DebunkingWeakSome alternative framings suggest Skripal's past as a double agent created enemies beyond the Russian state, or that the timing was designed to embarrass Russia before the 2018 World Cup. No evidence supports any non-Russian-state perpetrator.
Rebuttal
Skripal had been exchanged in a 2010 spy swap and was no longer operationally active. The specific weapon — novichok A-234 — is a state-programme-only substance. No evidence of any alternative perpetrator has been produced despite extensive public investigation.
Neutral / Ambiguous2
Russia's Denial of GRU Unit 29155 Attribution Remains Officially Unresolved
NeutralThe UK identified the suspects as Colonel Anatoliy Chepiga and Dr. Alexander Mishkin based on passport analysis, travel records, and open-source investigation by Bellingcat — later confirmed by investigative journalists including Christo Grozev. Russia has not acknowledged GRU Unit 29155's existence or provided alternative accounts of the suspects' identities consistent with their documented travel. However, the identification rests primarily on passport and travel documentation obtained through non-judicial means, meaning formal extradition proceedings have not produced a trial that would subject the evidence to adversarial scrutiny in a court of law.
Dawn Sturgess Secondary Exposure Complicates Attribution Chain Without Weakening Core Finding
NeutralDawn Sturgess's death in July 2018 from Novichok exposure — after her partner Charlie Rowley found a discarded perfume bottle used in the Skripal attack — extended the attack's consequences beyond the original targets. The perfume-bottle disposal reflects operational carelessness rather than intent to kill Sturgess, which the UK public inquiry chaired by Lord Hughes (ongoing as of 2025) is examining. This secondary casualty complicates the operational narrative without materially affecting attribution of the Skripal attack to GRU Unit 29155, since the same Novichok batch connects both incidents forensically.
Timeline
Sergei and Yulia Skripal found unconscious in Salisbury
Sergei Skripal and his daughter Yulia are found slumped on a bench in Salisbury city centre. Both are in critical condition. Police officer DS Nick Bailey also falls ill after responding to the scene. UK scientists at Porton Down identify the substance as novichok nerve agent.
OPCW confirms novichok A-234
The OPCW publishes findings confirming the identification of novichok A-234, corroborating Porton Down. The UK expels 23 Russian diplomats; allied nations expel further Russian diplomats in solidarity. Russia denies involvement and expels UK diplomats in response.
Source →Dawn Sturgess dies from secondary novichok exposure
Dawn Sturgess dies after applying what she believed to be perfume from a bottle found by her partner Charlie Rowley in Salisbury. The bottle was the novichok delivery mechanism discarded by the operatives. She is the only fatality directly attributed to the attack.
Source →Bellingcat identifies Boshirov as GRU Colonel Chepiga; Petrov as Dr Mishkin
Bellingcat publishes its identification of the two RT-interviewed suspects as Anatoliy Chepiga (GRU colonel, Hero of the Russian Federation) and Alexander Mishkin (GRU military doctor). A third operative, Denis Sergeev, is subsequently identified as the senior handler.
Source →
Verdict
OPCW confirmed novichok A-234. UK identified GRU Unit 29155 operatives Chepiga ('Boshirov') and Mishkin ('Petrov'), corroborated by Bellingcat. Third operative Denis Sergeev ('Fedotov') identified as handler. Dawn Sturgess died 8 Jul 2018 from secondary exposure to discarded perfume-bottle delivery mechanism. Russia denied involvement; suspects gave implausible cathedral-tourist cover story on RT.
Frequently Asked Questions
Did the Skripals survive the novichok attack?
Yes. Both Sergei and Yulia Skripal survived after weeks in critical care. DS Nick Bailey, the police officer who responded to the scene, also survived. The only fatality was Dawn Sturgess, who died from secondary exposure to the discarded novichok delivery bottle weeks after the initial attack.
What was the cathedral interview and why did it matter?
In a September 2018 RT interview, the two operatives — appearing as Boshirov and Petrov — claimed they had visited Salisbury twice in one weekend as tourists to see its famous medieval cathedral, and that snow had disrupted their first visit. The explanation was widely regarded as implausible given the documented travel records and the specific coincidence of their visit with the poisoning. It became one of the most-cited examples of Kremlin disinformation brazenness.
What is GRU Unit 29155?
Unit 29155 is a clandestine unit of Russian military intelligence (GRU) linked to assassination attempts, destabilisation operations, and coups across Europe. Its existence and activities were established through investigative journalism by Bellingcat and other outlets. The unit has been designated a sanctions target by the UK and allied governments.
Why did the Salisbury attack kill Dawn Sturgess but not the Skripals?
The Skripals received a more concentrated dose through the primary delivery mechanism — the perfume bottle applied to the front door handle of Sergei's house — but benefited from rapid emergency medical response and specialist treatment. Dawn Sturgess, exposed weeks later to residual agent in the discarded bottle, received a high dose and did not receive timely diagnosis, contributing to her death.
Sources
Show 3 more sources
Further Reading
- paperOPCW report confirming novichok A-234 in Salisbury — OPCW Technical Secretariat (2018)
- articleBellingcat: Salisbury attack suspect Boshirov identified as GRU Colonel Chepiga — Bellingcat Investigation Team (2018)
- documentaryThe Salisbury Poisonings (BBC drama) — Adam Patterson and Declan Lawn (2020)