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. In this series, Robbie Coltrane reveals 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 detective's art: using skill and determination to solve seemingly unsolvable cases, because the only difference between success and failure is critical evidence.

Starring:

Robbie Coltrane

Genre:

Crime, Documentary, Mystery