"July turned out to be a bad month for bite-mark evidence. First,
a high-ranking Obama administration official told a
government-sponsored conference on managing forensic science error
that bite-mark evidence should be "eradicated from forensic
science." Next, a Chicago federal judge issued perhaps the most
stinging judicial rebuke yet of the unreliable and unsubstantiated
notion that an "expert" can reliably associate a bite mark left in
a crime victim's skin with a particular person. The latest criticisms came on the heels of revelations in April
by the FBI that 26 of 28 examiners in an elite FBI microscopic
hair-comparison unit had overstated forensic matches in ways that
favored prosecutors in 95 percent of trials in which they had
offered evidence over two decades. It all served as a reminder of
the need to rein in the runaway use of forensic "science" in our
criminal courts. Although the widely acclaimed 2009 report of the National
Academy of Sciences highlighted the starkly limited reliability of
many forensic disciplines commonly used to convict criminal
defendants, many judges have been oddly reluctant to acknowledge
that the NAS report changed anything. But change may yet occur as
the limits of certain forensic sciences receive wider
acknowledgement.........If mainstream scientists and judges are beginning to take note
of the courtroom limits of weak forensic disciplines such as
bite-mark comparison, perhaps there is hope that more courts will
take the NAS report seriously and bring the needed rigor to their
tasks as gatekeepers of expert evidence, upon which lay juries rely
so heavily." (Thanks to Mike Bowers. Publisher of "Forensics in Focus (CSIDDS)" for drawing our attention to this article. HL);
http://m.nationallawjournal.com/module/alm/app/nlj.do#!/article/1751566393