Exploring how the police and their specialist forensic teams caught Anthony Hardy, one of Britain's most notorious serial killers, infamously known as `'The Camden Ripper'.

Exploring how the police and their specialist forensic teams caught murderer Stephen Marshall, infamously known as `The Jigsaw Killer'.

Looking at the 2002 murder of 87-year-old pensioner Gladys Godfrey in Mansfield. The killer gained entry to her bungalow in the middle of the night and sexually assaulted Gladys before murdering her.

Specialist forensic teams and detectives collate evidence discovered at murder scenes to catch Britain's killers. Exploring the moment a body is discovered, the evidence gathered, and the decisions made in these early stages.