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Sergei and Yulia Skripal could have suffered brain damage after nerve agent exposure, says judge Sergei and Yulia Skripal could have suffered brain damage after nerve agent exposure, says judge
(35 minutes later)
Segei and Yulia Skripal may have suffered life-long brain damage as a result of the nerve agent attack in Salisbury, a court has heard. Sergei and Yulia Skripal may have suffered life-long brain damage as a result of the nerve agent attack in Salisbury, a court has heard.
Mr Justice Williams said "medical tests indicate that their mental capacity might be compromised to an unknown as so far unascertained degree". Mr Justice Williams told the Court of Protection that the father and daughter remain in intensive care under heavy sedation. 
More follows… “The precise effect of their exposure on their long term health remains unclear, albeit medical tests indicate that their mental capacity might be compromised to an unknown and so far unascertained degree,” the judge said.
“At present both Mr and Ms Skripal are critical but stable; it is not inconceivable that their condition could rapidly deteriorate.”
A consultant treating the victims at Salisbury District Hospital said that Mr Skripal was unable to communicate in any way, but said his daughter was unable to communicate in any “meaningful way”.
The doctor said it was not yet possible to tell whether the pair can recover but that they were being treated “on the basis that they would wish to be kept alive and to achieve optimal recovery”.
He ruled that doctors could pass fresh blood samples from the victims to the Organisation for the Prohibition of Chemical Weapons (OPCW) alongside their medical records to aid an international investigation.
Mr Justice Williams made the ruling under the Mental Capacity Act 2005 at the Government’s request because the Skripals are unable to give consent.
The judge said taking new samples was in their “best interest” and it was not possible to say whether their current incapacity was temporary or permanent.   
He concluded that the OPCW’s investigation may provide information on how to treat Mr Skripal and his daughter, and what happened to them.
“That might simply confirm the current conclusions, it might elaborate or clarify them, it might reach a different conclusion,” Mr Justice Williams said.
“Although the Secretary of State [Amber Rudd] does not believe the latter prospect to be likely given her confidence in Porton Down’s findings, I do not think the possibility can be ignored.”
He announced his decision on Thursday after analysing the case at a private hearing earlier this week, when evidence was heard from chemical weapons experts, arms control and the Home Office. 
The samples will be used to identify the nerve agent used to poison the pair and for DNA analysis confirming the origin of blood originally tested by the British military.
Experts at the Defence, Science and Technology Laboratory at Porton Down identified the nerve agent used against the Skripals as part of the Soviet-developed “Novichoks” group.
The Prime Minister said Russia had provided “no credible explanation” on how the substance came to be used on the streets of Wiltshire and accused Vladimir Putin’s government of culpability.
OPCW investigators have carried out tests in areas visited by Mr Skripal and his daughter in Salisbury and the results are expected to take a minimum of two weeks.
Police have not confirmed how the nerve agent was administered but confirmed a total of 38 people were treated for varying symptoms resulting from exposure.
Only the Skripals and Detective Sergeant Nick Bailey were kept in hospital, while an unnamed person is being treated as an outpatient.
DS Nick Bailey was discharged from treatment on Thursday, officials said.
Ms Skripal had been visiting her father on a holiday from Russia when they fell ill after going for lunch in Salisbury on 4 March, with passers-by trying to help after finding the pair slumped on a park bench.
Mr Skripal moved to the cathedral city after being handed over in a Cold War-style spy swap in 2010.
He had been jailed for treason in Russia for allegedly passing secrets to MI6 while a colonel in the GRU military intelligence agency.
Mr Skripal’s wife died in 2012, his son passed away last year and he is also believed to have lost his brother in recent years.
The Court of Protection heard that he has some relatives in Russia but the Home Office has not attempted to contact them.
The Russian government has promised to cooperate with the OPCW but dismissed its conclusions that ally Bashar al-Assad killed civilians with sarin gas in Syria last year.
It denies any wrongdoing and claims it has destroyed all chemical weapons stockpiles and complied with the Chemical Weapons Convention.
Alexander Yakovenko, the Russian Ambassador to the UK, heightened tensions by accusing Britain of storing deadly Novichok itself in an extraordinary press conference.