What effect did the 'Colin Pitchfork Case' have on DNA use in CSI?

What effect did the 'Colin Pitchfork Case' have on DNA use in CSI?

The Colin Pitchfork case is, to my knowledge, the first documented case where DNA was used in the investigative process. In 1984, Alex Jeffries discovered the applicability of DNA to forensic analysis. Shortly thereafter the police undertook the investigation of a double murder in a town in England, and ultimately voluntarily collected biological specimens for DNA analysis from all the residents of that town. As a result of the DNA analyses that were conducted, Colin Pitchfork was identified as the perpetrator of the crime. Now, interestingly enough, as a result of DNA analysis, it's also the first known instance where a suspect was exonerated for the commission of a crime, because that is exactly what happened in the Colin Pitchfork investigation.