The devastating collision that took the life of a mother and her unborn baby.

How a gang of armed robbers terrorising communities across the Midlands were caught.

We join a crack unit in the West Midlands as they fight to drive down crime.

Greater Manchester Police renew their appeal to find 14-year-old Lisa Hession's killer.

Police need help to solve one of Scotland's most notorious cases.

The family of Paul McGrath, who was killed in 1997, appeal for help.

Why organised crime gangs are stealing GPS trackers from farmers.

The heartbreaking case of a driver whose recklessness killed an eight-month-old baby.

An incredible story of bravery as police race to evacuate a caravan site on fire.

A road traffic team investigate a tragic collision that took the life of a young woman.

After a shocking assault on Bournemouth beach, detectives track down an attacker.

Police use CCTV to trace a group of thieves that broke into a Warrington supermarket.

The harrowing murder investigation into how 39 immigrants died in the back of a lorry.

When a brave survivor reports a historic sex crime, police set out to prove their case.

An audacious gang blow up ATMs to get to the cash inside.

When a dealer operates entirely online, police have to think creatively to solve the case.

After a spate of thefts across south Wales, police discover a thief with many disguises.

A welfare check on a vulnerable woman leads detectives to a tragic discovery.

The NCA take down a money launderer who used gold and art to clean drug dealers' cash.

An extraordinary act of bravery as officers stop a dangerous man armed with explosives.

An investigation into a man who spiked other men's drinks and sexually assaulted them.

A race against time to find an attacker targeting lone women in violent random assaults.

Up in the air with the Welsh Air Ambulance.

How one of the biggest prison drugs smuggling rings ever was uncovered.

We follow the work of a West Midlands unit focusing on protecting vulnerable people.