The case of Tia Sharp, a 12-year-old girl reported missing in London, leading to a major search which took the police close to home.

A women's killer remains at large for more than 30 years, until forensic investigators track him down with a tiny clue at the scene.

The tragic case of 22-year-old Helen McCourt, who got off a bus one night in her hometown but never arrived at her nearby home.

When 13-year-old Lucy is reported missing by her mother, police and forensic investigators begin the painstaking search for the truth.

Years after the crime, see how forensics helped solve the murder of Becky Godden-Edwards, finding a killer who had sadly murdered again.

A woman dies in an apparently accidental house fire, but one police officer spots signs that something more sinister is at play.

The investigation of a murder of her mother in her home in 1994, as police used forensic clues to find an appalling killer.

See how investigators uncovered the perpetrator behind the 1994 murder of a grandmother at a bathroom of a bus station in Bury.

After a grandmother is strangled to death at an allotment shed, police use the scene's forensics clues to solve a chilling case.

The case of Suzanne Greenhill, a deaf woman murdered in her own home, whose murder took forensic investigators on a trail through Europe.

When body parts wash up on a beach in Arbroath, forensic investigators must unravel the disturbing truth behind a woman's death.

When a body is found in a flat, a trial of forensic evidence allows detectives to distinguish between friend and foe.