Pike evidence moved by Labour Dept worker - Rockhouse

Police are investigating allegations that a piece of Pike River evidence may have gone missing in the care of the mine company. A photograph shows an electrical cabinet door that was blown to the mine surface - but no one can say where the actual item has gone. Sonya Rockhouse's son Ben died in the mine explosion, and she saw the photograph for the first time last week. She talks to Guyon Espiner.