The story of what happened when a man was murdered in Wales. Forensic Ecologist Professor Patricia Wiltshire used pollen, soil and plants to uncover the truth.

Inconsistencies at a shooting scene in Greater Manchester raise suspicions, and analysis of forensic ballistics reveals the hidden story behind a seemingly straightforward tragedy.

The story of Natalia Doherty, who vanished. More than a decade later, forensic archaeologists and anthropologists recovered hidden evidence from a garden grave in Luton.

The story of a fatal stabbing outside a Gloucester nightclub, which lead detectives into gang culture, where forensic linguistics deciphered coded conversations.

The tragic story of Peter Falconio, who was murdered while travelling with his girlfriend Joanne Lees through the vast emptiness of Australia's Northern Territory.

The story of Terry Edmonds, who had ambitions to become a midwife. In 2006, she boarded the train home, stepped off onto the platform, and was never seen alive again.

Kim Banyard was the mother of a ten-week-old baby boy. In 2003, she went to a party at a friend's house, and it was the last time anyone outside her own home saw her alive.

Special-needs teacher Jane Longhurst visited the flat of Graham Coutts, a guitarist and part-time salesman, in March of 2003 and never left.

The story of Karen Pedley, who was hailed a hero after a 1983 fire, but later became a serial arsonist across Cornwall. Forensic investigators linked years of blazes to her.

The story of Edwin Hiles, who was found murdered in his home. Tiernan Coyle's pioneering fibre mapping technique linked Paul Weedon to the crime.