A man whose partner died after she was exposed to Novichok in the Salisbury poisoning plans to sue Russia in his fight for justice.
Dawn Sturgess, 44, died after she was exposed to the nerve agent Novichok left in a perfume bottle in Amesbury, Wiltshire, in July 2018.
Ms Sturgess's boyfriend Charlie Rowley was also poisoned after finding the perfume bottle and within hours the pair were in a serious condition in hospital.