01/01/2026
"Code of a Killer" is a British true-crime drama miniseries that aired in 2015.
It tells the real-life story of how DNA fingerprinting was first used to catch a murderer. The series follows Alec Jeffreys, the pioneering geneticist who developed the groundbreaking DNA technique, and Detective David Baker, who sought his help to solve the brutal murders of two schoolgirls in 1980s England.
Together, they made forensic history—proving a suspect’s innocence and identifying the true killer through a mass DNA screening.