Watch Real Crime online: Episode 21 Diamond Geezers

Documentary following the true story of how the Metropolitan Police's Flying Squad foiled the would-be robbery of the millennium. Using interviews, exclusive archive footage and dramatic reconstruction, the programme investigates how a gang of villains plotted to steal the world's largest perfect diamond from the Millennium Dome and escape up the River Thames, and how they were stopped by one of the most daring police operations ever. But how dangerous was this Hollywood-style heist?

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