I hope you were able to watch “The Real CSI” on PBS last night. The program shined a bright light on the shortcomings and failures of the forensic disciplines.(Excuse me, but I refuse to call them “sciences”.) The focus was mainly on “fingerprints”, “bite marks”, and “odor analysis”, but mention was also made of “blood spatter”, “hair & fiber”, and “ballistics”. There was also a piece about the shoddy state of forensic expert “certification”. Please see the earlier post by Mark Godsey: https://wrongfulconvictionsblog.org/2012/04/18/must-read-story-about-lack-of-control-in-forensic-accreditation/
If you were not able to watch, you can view the program online here:
http://www.pbs.org/wgbh/pages/frontline/real-csi/
In the closing of the program, Federal Judge Harry T. Edwards, who was one of the principal authors of the NAS report, got it exactly right when he said, “It’s not pro-defense. It’s not pro-prosecution. It’s pro-justice.”
The question I have to keep asking the forensic “experts”, and the one that will stop them in their tracks, is – “Show me the data from which I can compute a probability of occurrence.” The only forensic discipline that can do this today is DNA.
Wrongful Convictions Blog 
Thank you. I will definitely watch it. I have to say again – I love this blog! It is the best way to keep up with everything. Thanks to everyone who contributes.