The Hunt for Britain's Paedophiles

First in a three-part series following investigations by Scotland Yard's specialist Paedophile Unit. This week a routine search of a suspected paedophile's home leads to the discovery of the most extensive collection of child pornography ever seized in Britain. This is the start of Operation Doorknock, which results in the uncovering of a paedophile ring which has been operating for many years. This programme contains disturbing images.

The second in a three-part series following investigations by Scotland Yard's Paedophile Unit. Operation Doorknock continues as detectives track down some of the people who were victims of a paedophile ring. Although the prime suspects are released on bail, the police search for witnesses prepared to testify is successful. The case is taken to the Old Bailey, and its outcome shocks even the most cynical of detectives. Contains disturbing and distressing images.

Concluding the three-part series following investigations by Scotland Yard's Paedophile Unit. The detectives search the home of Mark Hanson , a paedophile in Southampton who is wanted by the Dutch police. He allows the cameras into his home and talks frankly about his life as a committed and incurable paedophile. Contains disturbing images.