Expert Witness Episodes Available now
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Blood on His Hands—Series 4
14/15 When a disabled woman is killed, her neighbour is suspected.
Unearthing the Truth—Series 4
13/15 A boy's killer escapes detection. Thirty years on, a pollen expert finds crucial evidence.
The Murder of Sarah Payne: Fields of Evidence—Series 4
1/15 The murderer of Sarah Payne is linked to the crime by a forensic pollen expert.
Blood on the Carpet—Series 4
11/15 A mother and son vanish in 1976. 40 years on, a blood analyst helps to find the killer.
The Shooting of Olivia Pratt-Korbel—Series 4
10/15 An image analyst helps detectives unmask the killer of a young girl in Liverpool.
Lured to the Woods—Series 4
9/15 When a teen is fatally stabbed, an expert analyses the wounds to shed light on the attack.
Beneath the Ashes—Series 4
8/15 After fire crews find a body in a burning flat, a blood spatter analyst finds evidence.
The Boy in the Woods - The Murder of Rikki Neave—Series 4
7/15 A soil expert's evidence helps to convict a killer 30 years after the murder.
Murderers, Messages and the Breakfast Killer—Series 4
6/15 An intelligence analyst tracks the killers of a man stabbed to death in his own home.
Catching a Cold Case Killer—Series 4
5/15 Untying the knot in a dressing gown cord used to murder a woman finally nails her killer.