Expert Witness
Season 4 Episode 4 - Cracking the Killer’s Code
When a violent gang use a secret language to discuss a fatal attack, police turn to a forensic linguist to crack their code.
Audio Languages: English
Subtitles: English
Starring:Ashley John-Baptiste
Season 4
S04:E01 - The Murder of Sarah Payne: Fields of Evidence
The heart-wrenching case of 8 year old Sarah Payne who was abducted and murdered. A forensic ecologist finds a vital link between the suspect and the gravesite.
S04:E02 - The Body in the Suitcase
A twisted killer throws two suitcases containing severed remains into a canal and it’s down to a 3D scanning expert to uncover the crucial evidence needed to convict him.
S04:E03 - The Wheelie Bin Killer
When a body is found in a wheelie bin dumped in a lake, can a cell site analyst track the suspects’ movements and help put them behind bars?
S04:E04 - Cracking the Killer’s Code
When a violent gang use a secret language to discuss a fatal attack, police turn to a forensic linguist to crack their code.
S04:E05 - Catching a Cold Case Killer
Can untying the knot of a dressing gown cord used to kill Mary McLoughlin 35 years ago, finally reveal the identity of her killer?
S04:E06 - Murderers, Messages & the Breakfast Killer
In a horrifying case of mistaken identity, a man is stabbed to death in his home. Can an intelligence analyst help convict the suspects?
S04:E07 - The Boy in the Woods: The Murder of Rikki Neave
Nearly 30 years after six year old Rikki Neave was brutally murdered, the cold case is reopened and evidence from a soil expert proves crucial in convicting his killer.
S04:E08 - Beneath the Ashes
When fire crew discover a woman’s body in a burning flat, a blood spatter analyst uses a risky and untested method to reveal key evidence.
S04:E09 - Lured to the Woods
A teenage girl is found dead in woodland and a forensic pathologist analyses her stab wounds to shed light on what happened to her.
S04:E10 - The Shooting of Olivia Pratt-Korbel
The devastating case of a gunman fatally shooting a young girl in Liverpool. An image analyst helps detectives unmask the notorious killer.
S04:E11 - Blood on the Carpet
A mother and child disappear in 1976 only leaving a burnt-out car behind them. Over 40 years later can a blood analyst help police finally bring their killer to justice?
S04:E12 - The Rachel Nickell Murder: Justice at Last
The brutal unsolved murder of Rachel Nickell on Wimbledon Common shocked the nation. Ten years on can a forensic team use new DNA technology to identify the killer?
S04:E13 - Unearthing the Truth
A young boy is beaten to death, but his killer evades justice. Three decades on a pollen expert finds a crucial link between a suspect and the brutal murder.
S04:E14 - Blood on His Hands
A disabled woman is brutally murdered and her neighbour is the prime suspect, but can a consultant doctor help police put him behind bars?
S04:E15 - Buried Secrets
The 2005 murder of a Glasgow woman goes cold, but 17 years on, can a Dutch soil expert help to finally bring the killer to justice?
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