Expert Witness Series 4 Episodes Available now
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![](https://ichef.bbci.co.uk/images/ic/320x180/p0jzfm46.jpg)
The Murder of Sarah Payne: Fields of Evidence
1/15 The murderer of Sarah Payne is linked to the crime by a forensic pollen expert.
![](https://ichef.bbci.co.uk/images/ic/320x180/p0jzfwbx.jpg)
The Body in the Suitcase
2/15 A 3D-scanning expert uncovers crucial evidence to convict a twisted killer.
![](https://ichef.bbci.co.uk/images/ic/320x180/p0jzfwpt.jpg)
The Wheelie Bin Killer
3/15 When a body is found in a wheelie bin, an expert tracks the suspects’ mobile phones.
![](https://ichef.bbci.co.uk/images/ic/320x180/p0jzg192.jpg)
Cracking the Killer's Code
4/15 Police turn to a forensic linguist to crack the code of a gang using a secret language.
![](https://ichef.bbci.co.uk/images/ic/320x180/p0jzfx87.jpg)
Catching a Cold Case Killer
5/15 Untying the knot in a dressing gown cord used to murder a woman finally nails her killer.
![](https://ichef.bbci.co.uk/images/ic/320x180/p0jzfxmb.jpg)
Murderers, Messages and the Breakfast Killer
6/15 An intelligence analyst tracks the killers of a man stabbed to death in his own home.
![](https://ichef.bbci.co.uk/images/ic/320x180/p0jzg4r1.jpg)
The Boy in the Woods - The Murder of Rikki Neave
7/15 A soil expert's evidence helps to convict a killer 30 years after the murder.
![](https://ichef.bbci.co.uk/images/ic/320x180/p0jzv12c.jpg)
Beneath the Ashes
8/15 After fire crews find a body in a burning flat, a blood spatter analyst finds evidence.
![](https://ichef.bbci.co.uk/images/ic/320x180/p0k052t9.jpg)
Lured to the Woods
9/15 When a teen is fatally stabbed, an expert analyses the wounds to shed light on the attack.
![](https://ichef.bbci.co.uk/images/ic/320x180/p0jzv3m4.jpg)
The Shooting of Olivia Pratt-Korbel
10/15 An image analyst helps detectives unmask the killer of a young girl in Liverpool.