Smoking Gun

Episode 8: The Potato

Detectives have many tools at their disposal. And when a suspect is in their sights, they'll explore them all - in the hope they can provide the evidence they need. But it's rare that something as simple as a potato can confirm their suspicions. In this episode we explore a baffling disappearance, which evolved into a murder enquiry. But while the suspect was under investigation, it would take an incredibly detailed forensic hunt to finally prove the case against him.
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In every murder investigation, there's one key item that could bring a killer to justice.
But finding it....and knowing what evidence it contains....well that's the challenge. Because the smoking gun could be anything. A bouquet of flowers...a Chinese meal...a mosquito.
In this series we tell the remarkable true stories of how everyday items such as these have been the key to unlocking a criminal case. And we unpack the science - revealing the cutting edge techniques and the disciplines mastered over decades, which allow specialist forensic scientists to find this evidence.
Hosted by actor Romola Garai, and the UK's most prominent forensic scientist Tracy Alexander.