The Moment of Proof: Season 4 Episode 4 (BBC One, Thursday, June 19, 2025)

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The core idea of The Moment of Proof is that even when a crime seems unsolvable, the science will eventually find a thread to pull. This week’s episode, airing Thursday at 10:45 AM GMT on BBC One, presents investigators with a daunting case: a man is stamped to death on a public street, yet there are no known witnesses and no CCTV footage to give them a starting point.

With traditional investigative avenues closed off, the case hinges entirely on the work of a footwear specialist. The episode gives a detailed look at how an analyst can examine bruising patterns left on a victim’s body to identify the specific type—and possibly the exact pair—of shoes used in the attack. It’s a fascinating, granular dive into a field of forensics that rarely gets the spotlight, moving beyond simple footprints to the more complicated story told by the injuries themselves. The entire case rests on whether this microscopic evidence is enough to point police toward a suspect.

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As a secondary plot, the episode also follows an investigation into a hacked website, where detectives trace the perpetrator through an old computer gaming account. Both stories highlight the show’s strength: its focus on the methodical, often tedious work that truly solves crimes. It sidesteps the high drama of many true-crime series to instead concentrate on the quiet, meticulous application of science in the pursuit of justice.

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The Moment of Proof airs on BBC One at 10:45 AM GMT on Thursday.

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.