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The stories of murder investigations and their extraordinary consequences, which overturned laws, transformed police interrogation and revolutionised forensic detection.
The story of the hunt to find the killer of two teenage girls in 1980s Leicestershire which led to an extraordinary forensic breakthrough - DNA fingerprinting.
Shocked by the failure to convict her daughter’s killer, a mother fights for justice by taking on the legal establishment and overturning an 800-year-old law.
The story of how a 1970s miscarriage of justice involving three teenage boys would lead to a radical overhaul of police powers and a brand new method of investigation.
