 A blue-ribbon panel of the [[National Academy of Sciences]] raised concerns about the FBI's reliance on forensic testing in a 2009 report that "found nearly every familiar staple of forensic science to be scientifically unsound" and highly subjective.In 2016 a man was exonerated and freed in Virginia, based on DNA evidence, after serving 33 years in prison.He had been convicted of rape and murder and sentenced to life in part based on several FBI experts testifying to identification of him by bite-mark patterns, to a "medical certainty."