Robbie Coltrane sitting at a desk with photos, lights and cameras

Watch how the trail of evidence is critical in cracking some of the most baffling murder cases ever investigated by British police.

Eight of the hardest, most complex and baffling murder cases ever investigated are revealed in Robbie Coltrane’s Critical Evidence, on Crime + Investigation (DStv Channel 170) Mondays at 20:00, and streaming live on DStv Now.

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Truth is stranger than fiction. Also more horrifying, weird and compelling. Visit our True Crime Documentaries Playlist for more true crime shows.

It's often said that most murder victims knew the person that killed them, this mades homicide a straightforward crime to solve. Yet 20% of UK homicides are classified as ‘circumstances unknown’. The focus of this series is the trail of evidence: how it was discovered, what it meant and how it became critical to crack the case. Robbie Coltrane reveals the astonishing twists and turns of cases that are often stranger than fiction, including interviews from the lead investigators and forensic specialists. The only difference between success and failure is critical evidence, and the art of the detective requires skill and determination to solve seemingly unsolvable cases.

For more crime shows, tune into DStv Now.

DStv Now can be accessed online at or through the app for tablets and smartphones. The app is free to download on the Google Play Store or Apple App Store and is available to all DStv customers. 

Live channels and DStv Catch Up content are currently only available to DStv PremiumDStv Compact Plus and DStv Compact customers and data costs will apply when streaming content.

Visit our True Crime Documentaries Playlist for more true crime shows you won't be able to stop watching. 

By Alice da Silva