Scientists building database of controversial bite marks The Associated Press
MILWAUKEE — It has sent innocent men to death row, given defense attorneys fits and splintered the scientific community. For a decade now, attorneys and even some forensic experts have ridiculed the use of bite marks to identify criminals as sham science and glorified guesswork. Now researchers at Marquette University say they have developed a first-of-its kind computer program that can measure bite characteristics. They say their work could lead to a database of bite characteristics that could narrow down suspects and lend more scientific weight to bite-mark testimony. “The naysayers are saying, ‘You can throw all this out. It’s junk science. It’s voodoo. This is a bunch of boobs that are causing a lot of problems and heartaches for people,’ ” said team leader Dr. L. Thomas Johnson, a forensic dentist who helped identify victims of the cannibalistic Milwaukee serial killer Jeffrey Dahmer. “It’s a valid science if it’s done properly.” Skeptics already are taking shots. “Scientifically illiterate,” Dr. Mike Bowers, a deputy medical examiner in Ventura County, Calif., and a member of the American Board of Forensic Odontology, said of Johnson’s work. Built around the assumption that every person’s teeth are unique, forensic dentistry has used bite impressions to identify criminals for 40 years. Bite marks on a young woman helped convict serial killer Ted Bundy of murdering her and another college student. But critics say human skin changes and distorts imprints until they are nearly unrecognizable. As a result, courtroom experts end up offering competing opinions. “If the discipline lends itself to opposing experts, it’s not science,” said Peter Neufeld, co-director of the Innocence Project, which works to free wrongfully convicted inmates. Since 2000, at least seven people in five states who were convicted largely on bite-mark identification have been exonerated, according to the Innocence Project. In Arizona, Ray Krone was found guilty in 1992 of killing a Phoenix bartender based largely on expert testimony that his teeth matched bites on the victim. He was sentenced to death, won a new trial on procedural grounds, was convicted again and got life. But DNA testing in 2002 proved he wasn’t the killer. Krone was freed and won a spot on the ABC reality show “Extreme Makeover” to remake his teeth. In Mississippi, forensic odontologist Dr. Michael West has come under fire after he testified in two child rape-murders in the 1990s that bite marks positively identified each killer. Kennedy Brewer was sentenced to death in one case, and Levon Brooks got life in prison in the other.
This puts a whole new meaning to the phrase, 'BITE ME'.
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