Archive for the 'forensic science' Category

Who will capture forensic science?

April 6, 2009

by Roger Koppl

Friday I spoke at a conference on  Forensic Science in the 21st Century: The National Academy of Sciences Report and Beyond  The report was a humdinger.  It says,  “The bottom line is simple: In a number of forensic science disciplines, forensic science professionals have yet to establish either the validity of their approachor the accuracy of their conclusions, and the courts have been utterly ineffective in addressing this problem.”  That’s strong stuff.  The report did a good job at identifying the unscientific nature of much of forensic science.  The report neglected problems that can arise in nuclear DNA analysis, but it is still impressively hard hitting.   Read the rest of this entry »

Now it’s official: forensic science is a mess

March 7, 2009

by Roger Koppl

The NAS released a much-anticipated report on forensic science last month.  The report said, “With the exception of nuclear DNA analysis, however, no forensic method has been rigorously shown to have the capacity to consistently, and with a high degree of certainty, demonstrate a connection between evidence and a specific individual or source.”  That’s a much stronger statement than we might have expected.  The report identified several of the big problems with forensic including attachment to law enforcement.  The report advises Congress to create a new home for forensic science: the National Institute for Forensic Science (NIFS).  Basically, NIFS would take over forensic science and make sure everybody plays fair and does the right thing. 

The NAS proposal to create NIFS is a much better idea than many ThinkMarkets readers might at first imagine.  You might think it’s a bad idea to create another bloated government bureaucracy centralizing authority in Washington.  But we need to remember where authority exists today and what constrains that authority.  As the NAS report notes, the current system is “fragmented.” The opposite of liberty is arbitrary authority, and in many parts of our “fragmented” system, local authorities have unchecked discretionary authority.  Reason magazine’s Radley Balko gives us a jaw-dropping example of the abuse of forensic-science authority in Mississippi.  Sadly, other examples exist.  NIFS will have problems of its own, but it should be better than such arbitrary local authority.

The report is far from perfect.  It recommends research on “observer effects” in forensic science, but fails to recommend “sequential unmasking” as a corrective.  Nor does it recognize the importance of epistemic monopoly and the need for a defense right to forensic expertise.  It makes it impossible to pretend all is well in forensic science, however, and that’s a good beginning. 

A Gem in the Folded Palm of Forensic Science

January 15, 2009

by Roger Koppl

I’ve been railing against epistemic monopolies for a while now, particularly in forensic science.  This project complements Peart and Levy’s work on experts.  (See their symposium the 2008 Eastern Economics Journal, vol. 38 starting page 103.)  I keep insisting that we need redundancy to reduce error rates.  Economists, forensic scientists, and philosophers have all pressed me for data on error rates.  How big a problem is this really?  Read the rest of this entry »