Series 5
15 episodes · 2026
1Intent to Kill: The Ashley Dale Murder
A ballistics expert proves the shooting of a young woman was murder not manslaughter, and a forensic scientist secures justice for a cold case victim, 20 years after the crime.
2Death on Duty
A voice analyst makes a positive link to the killer of two police officers, and a lead forensic scientist identifies a phone snatcher from a shoe he left behind.
3A Deadly Dose
A forensic toxicologist proves that an Essex couple’s cause of death points to murder, and a footprint expert links a killer to two different murder scenes.
4The Killer Next Door
A pathologist and forensic scientist work together to convict the twisted killer of Elaine Collie, and a Home Office pathologist links two suspects to a double homicide.
5Cold Case Convictions
An expert witness uses fibre analysis to solve an execution-style murder, and after 26 years in prison, a man walks free when a forensic scientist links DNA to the real killer.
6The London Bombings
Forensic explosives experts are tasked with examining the crime scenes after the London bombings to establish if the devices had the signature of any known terrorist organisation.
7The Murder of Brianna Ghey
A blood spatter analyst helps puts the killers of a 16-year-old behind bars, and a forensic speech expert matches a voice on police dashcam to the killer of PC Ian Broadhurst.
8The Body in the Cellar
A forensic archaeologist locates the body of a teenage girl buried in a cellar, and an expert in scanning technology sends a homemade gun maker to jail.
9Dressed to Kill
A forensic image analyst identifies a killer from images in CCTV, and a forensic specialist helps police unravel the truth when a case goes from missing to murder.
10Left for Dead - The Murder of Hilda Murrell
A forensic biologist uses modern DNA techniques to solve the cold case murder of Hilda Murrell, and cell site analysis helps place a suspect at the scene of Abdul Deghayes’s killing.
11Grave Evidence - The Murder of Joanna Simpson
When a man kills his ex-wife, a forensic archaeologist helps determine if it was premeditated murder, and a cell site analyst follows a phone trail that convicts violent bank robbers.
12Deadly Threads
A fibre analyst uses a groundbreaking technique to solve the murder of 91-year-old Edwin Hiles, and a forensic fire investigator helps to uncover the truth behind a tragic house fire.
13Britain’s Coldest Case
A forensic scientist and a fingerprint expert identify a killer nearly 60 years after the crime, and a plant scientist helps expose a fraudster in a fake tea-growing operation.
14Death in the Woods
A forensic biologist works tirelessly to match DNA to the killer of Julia James, and an entomologist links a killer to a double murder.
15Voice of a Killerfinale
A skilled voice analyst proves the killer of a missing man is very close to home, and a UK fingerprint expert helps to overturn a miscarriage of justice.
