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.

Police have only a skeleton to help them piece together what happened to a body found 10 years after a murder.

When his parents are found dead, a man does everything he can to avoid being caught - but Luminol reveals a vital clue.

Bite marks in a block of cheese hold the key to catching a killer when he helps himself to a snack after a home invasion.

A man insists his missing parents are on holiday, but a forensic investigation of their house shows signs of a vicious attack.

When the body of a 16-year-old girl is found in a field, it would take over two decades before a DNA profile of the killer can be developed.

Thirty years after three gruesome murders, familial DNA and the exhumation of a body finally closes the case.

Experts analyse sand found in a car when a man goes missing, which leads them to a body and a twisted murder case.

Experts analyse the bodies of two women found in a freezer. Their untimely deaths would be linked to one vicious predator.

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.

The 2002 murders of Holly Wells and Jessica Chapman horrified and shook the nation. Explore how forensic science helped find their killer.

In 2022, 35-year-old Zara Aleena was beaten to death just ten minutes from her London home, but the only evidence left by her brutal killer was one bloody fingerprint at the crime scene.

In 1975, 11-year-old schoolgirl Lesley Molseed went to the shops and never returned to her family home in West Yorkshire. The ensuing police investigation led to a tragic miscarriage of justice before DNA evidence identified the true killer.

Larger-than-life David Morley survived a terrorist bombing in London, only to be beaten to death five years later during a night out in the city.

Mum Karen Doubleday was found murdered in the woods in 2002. The clue to finding her killer lay in pollen spores from the Ice Age.