Wiltshire air ambulance grounded by tests for novichok
"An air ambulance has been grounded and its base closed to allow specialists to test for the nerve agent novichok following the poisoning of Dawn Sturgess and Charlie Rowley in Wiltshire.
Police accepted that the development would alarm people, but insisted that the measure was only precautionary and that the risk to both the public and emergency personnel remained low.
Testing will take place at the air ambulance base in Semington, near Trowbridge. The helicopter itself, other emergency vehicles and kit worn by responders involved in the initial response to the poisoning of Sturgess and Rowley will be examined. It is not believed that the helicopter played a direct role in the initial response, but some paramedics who went to help the couple may later have flown in the aircraft."