Robbie Coltrane's Critical Evidence

When there's a murder with no suspect, no leads and perhaps not even a body, that's when investigators face their toughest test. Evidence must be gathered. Evidence must be analysed. But evidence is worthless if it can't be pinned to a suspect... Most murder victims knew the person that killed them. That's why homicide, in many cases, is a straightforward crime to solve. Yet 20% of UK homicides are classified as "circumstances unknown".

In this series, Robbie Coltrane reveals eight of the hardest, most complex and baffling murder cases ever to be investigated by British police. The focus of each programme is the trail of evidence: how it was discovered, what it meant and how it became critical to crack the case. With interviews from the lead investigators and forensic specialists, many speaking for the first time, Robbie reveals the astonishing twists and turns of often stranger-than-fiction cases. It is a record of the detectives' art: using skill and determination to solve seemingly unsolvable cases – because the only difference between success and failure is critical evidence

Show Info

Airs on: United Kingdom Crime & Investigation (2016 - now)
Schedule: Sundays at 22:00 (60 min)
Status: Running
Show Type: Documentary
Genres: Crime Mystery
Episodes ordered: 8 episodes

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Previous Episode

Into Thin Air: David Gilroy

Episode 2x08; Mar 11, 2018

In 2010, Suzanne Pilley disappeared on her way to work in Edinburgh. Here, Robbie Coltrane reveals the remarkable way her killer was caught.

Previous Episodes

Episode NameAirdateTrailer
2x08: Into Thin Air: David GilroyMar 11, 2018
2x07: The Double Axe Murderer: Dennis SmalleyMar 4, 2018
2x06: The Saturday Night Strangler: Joe KappenFeb 25, 2018
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Cast