24 Hours in Police Custody

Go behind the scenes of a police investigation into a premeditated, brutal murder with no witnesses or CCTV, leaving few clues to work with.

The Detective Chief Inspector believes he knows who was behind the murder, but has no witnesses. Cameras follow the investigation as detectives decide to arrest the victim's friends.

In the leafy suburbs of Luton, a man's caught on CCTV launching a brutal assault on three women. Soon he's all over Facebook as officers race against time before the suspect goes to ground.

A violent daytime brawl with knives erupts on the streets of Luton as a chicken shop war heats up. But the case takes an even more disturbing twist when a police raid lands a huge cache of drugs.

In the first part of a two-part special, a lone detective is on the trail of a Luton man who sexually abused scores of young people, in what becomes a complex, disturbing pursuit.

In the gripping concluding episode, will the victims of alleged historic child sex abuse finally get justice? Or will the suspect walk free again?

On a quiet Sunday lunchtime in a Cambridgeshire suburb, a man lies bleeding to death. A major manhunt is triggered, where the strength of family blood ties is brutally exposed.

The real-life drama follows police investigations into one of the most disturbing and hard-to-prove crimes - baby-shaking cases - and examines parents' often-divided loyalties