http://www.washingtonpost.com/local/crime/fbi-overstated-forensic-hair-matches-in-nearly-all-criminal-trials-for-decades/2015/04/18/39c8d8c6-e515-11e4-b510-962fcfabc310_story.htmlThe Justice Department and FBI have formally confirmed that for a two decade period that preceded 2000, nearly every forensic examiner in an elite FBI unit gave flawed testimony against criminal defendants, specifically noting 268 cases of hair analysis. Of those 268, 257 had flawed forensic testimony, and 32 were Death Penalty cases.
Of the 32 Death Penalty Cases, 14 have either been executed or died in prison.