The Moment of Proof: Season 4 Episode 5 (BBC One, Friday, June 20, 2025)

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BBC One’s daytime true-crime series The Moment of Proof continues its focus on the one piece of evidence that can turn an entire investigation. The show avoids dramatic recreations for a more grounded look at police work, breaking down cases to pinpoint the exact turning point where suspicion hardens into fact.

The fifth episode of the fourth series presents two separate and distinct investigations. In Newcastle, police are looking into the disappearance of a child. They have a suspect in their sights but lack the concrete evidence needed for an arrest. The case stalls until a seemingly insignificant clue emerges: a torn-up cheque. The discovery and careful reconstruction of this single piece of paper redirect the entire inquiry, leading detectives down a much darker path than they first imagined.

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Meanwhile, in London, a different kind of police work is underway. Following a tip-off, officers begin a lengthy surveillance operation on a local pub. Their diligence pays off when they uncover a fully operational drugs factory manufacturing amphetamines hidden directly beneath the establishment. The episode contrasts the patient, long-term observation in the London case with the sudden breakthrough from a small clue in the Newcastle investigation. It’s a solid demonstration of how different policing methods can lead to the same result: taking criminals off the streets.

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The Moment of Proof airs on Friday, June 20 at 10:45 AM on BBC One.

Isabelle aka Izzy Jacobs is the features editor at memorabletv.com. Isabelle is particularly drawn to crime dramas, but she also has a not so secret love for all things reality TV. In addition to her work at memorabletv.com, Isabelle is also an avid traveler and a devoted foodie.