The first DNA exoneration proved that a confession does not always guarantee guilt
In 1986, the first use of DNA profiling in a criminal investigation exonerated a man who had already confessed to murder, fundamentally changing the legal weight of admissions of guilt.
Richard Buckland became the first person in history to be exonerated by DNA evidence after he confessed to the 1986 murder of Dawn Ashworth in Leicestershire, England. Geneticist Alec Jeffreys applied his newly developed 'DNA fingerprinting' technique to semen samples, proving that Buckland could not have committed the crime despite his detailed statement to police.
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