13 innocent men were exonerated because of a lab technician's habit, dating back to 1977, of scotch taping small samples of tested evidence to her lab records, even though doing so violated the official policy to destroy all evidence after it was tested.

https://www.nbcnews.com/id/wbna9666591

Makes you wonder about the kind of world we live in where women can immediately imprison men if they accuse him of rape. What happened to "innocent until proven guilty"? If it weren't for one technician going against a policy that mandates the destruction of tested evidence, these men would always be known as guilty.