Key suspects believed to be involved in the Salisbury nerve agent poisoning took part in a revealing Russian TV interview, an inquiry has been told.
Commander Dominic Murphy, head of the Metropolitan Police's Counter Terrorism Command, gave evidence on Wednesday to the inquiry into the death of Dawn Sturgess.
Nobody has been charged for Ms Sturgess's death after she came into contact with Novichok in 2018, but suspects have been charged for the attempted murder of ex-Russian spy Sergei Skripal and his daughter Yulia.
The Kremlin has always denied involvement in the poisonings.