Based on the extraordinary true story of Alec Jeffreys' discovery of DNA fingerprinting and its first use by Detective Chief Superintendent David Baker in catching a double murderer.
- Year: 2015
- Genre: Drama, Crime, Mystery
- Studio: ITV1
- Keyword: police, dna, investigation, biography, based on true story, miniseries, murderer, docudrama, killer, homicide detective, dna testing, 1980s, manhunt
- Cast: David Threlfall, John Simm, Anna Madeley, Andrew Tiernan, Lorcan Cranitch, Dorothy Atkinson