There are real consequences to ascertaining the accuracy of such evidence. Cases get reopen and verdicts thrown out. For years, prosecutors told jurors that DN

There are real consequences to ascertaining the accuracy of such evidence. Cases get reopen and verdicts thrown out. For years, prosecutors told jurors that DNA and hair tests were much more accurate than they truly were, some cases claimed that they were 100% accurate. Jurors then convicted possibly innocent people based on that lie. The result was many convictions can now be overturned, prosecutors reputations sullied and millions of dollars wasted. The people that pay to keep these labs running have no interest in digging that deep.