He hopes to "get the whole truth" after Anne Sacoolas left the UK claiming diplomatic immunity.Read more
Harry Dunn crash
Northamptonshire Police's chief constable says he was complying with a request from the foreign office.
The case of Harry Dunn has rarely been out of the headlines for the past few weeks - the 19 year-old was killed in August when his motorbike collided with the the car of Anne Sacoolas, the wife of an American diplomat, outside RAF Croughton in Northamptonshire. She left the country a few days later citing diplomatic immunity. The Foreign Secretary came to the Commons to update MPs - Chris Wimpress was watching.