Sir Robert Mark, Commissioner of Police of the Metropolis - the man in charge of Scotland Yard - delivers this year's lecture before a specially invited audience at the BBC Television Centre.
Sir Robert Mark, Britain's top policeman, tonight critically examines our system of justice. He takes a fresh look at the role of the police in our society, and outspokenly declares his own beliefs about the state of law and order today.
Introduced by David Dimbleby