BBC: Amesbury Novichok searches see 400 items seized

In this file photo taken on July 05, work goes on behind the barriers across Rollestone Street, outside the John Baker House Sanctuary Supported Living in Amesbury, southern England, on July 5, in connection with the investigation after a man and woman were found unconscious in circumstances that sparked a major incident after presumed contact with what was later identified as the nerve agent Novichok. When Salisbury became the unwitting protagonist of a poisoning drama in March, it was in the merciless grip of a blast of cold blowing in from far-away Siberia. Now the historic cathedral city swelters in a summer heatwave, but the chill has returned. A 44-year-old mother of three became the first fatality of an international intrigue that Britain alleges is centred on Russia and a turncoat spy.