More than 200 witnesses have been identified as police investigate the Russian ex-spy poisoning “at speed”, the home secretary has said.
Amber Rudd praised the professionalism of the police who are now looking at more than 240 pieces of evidence.
Meanwhile, Det Sergeant Nick Bailey, who fell ill attending Sergei Skripal and his daughter Yulia, released a statement denying he was a “hero”.
Mr Bailey remains seriously ill but is awake and engaging with his family.
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