In 2005, Texas established a government commission to investigate allegations of error and misconduct by forensic scientists. The first cases that are being reviewed by the commission are those of Willingham and Willis. In mid-August, the noted fire scientist Craig Beyler, who was hired by the commission, completed his investigation. In a scathing report, he concluded that investigators in the Willingham case had no scientific basis for claiming that the fire was arson, ignored evidence that contradicted their theory, had no comprehension of flashover and fire dynamics, relied on discredited folklore, and failed to eliminate potential accidental or alternative causes of the fire. He said that Vasquez's approach seemed to deny "rational reasoning" and was more "characteristic of mystics or psychics." What's more, Beyler determined that the investigation violated, as he put it to me, "not only the standards of today but even of the time period." The commission is reviewing his findings, and plans to release its own report next year. Some legal scholars believe that the commission may narrowly assess the reliability of the scientific evidence. There is a chance, however, that Texas could become the first state to acknowledge officially that, since the advent of the modern judicial system, it had carried out the "execution of a legally and factually innocent person."
http://www.newyorker.com/reporting/2009/09/07/090907fa_fact_grann?currentPage=1