The National Academy of Sciences concluded that hair analysis is a flawed science in 2009.  Now, Texas has the first-in-the-nation commission set up to review legal cases that depended on this flawed science.  The Commission itself had all sorts of controversy when it was first set up as a political entity by Governor Perry.  After considerable publicity and push-back, the committee was reformed and true scientists added.  Now, those scientists will examine the case transcripts as well as ‘expert’ testimony of old cases that may have hinged on false science.  Best of luck to them!

http://www.austinchronicle.com/daily/news/2014-01-13/hair-analysis-the-root-of-the-evidence-problem/