Charged with the capital murder of Murray Wayne Burr, appellant was convicted of the lesser offense of murder and sentenced to seventy-five years in prison. We reverse the court of appeals and render an acquittal.
Like our sister courts across the country, we now hold that scent-discrimination lineups, whether conducted with individuals or inanimate objects, to be separate and distinct from dog-scent tracking evidence. “Even the briefest review of the scientific principles underlying dog scenting reveals that, contrary to the conclusions of many courts, there are significant scientific differences among the various uses of scenting: tracking, narcotics detection, and scent lineups.” Andrew E. Taslitz, Does the Cold Nose Know? The Unscientific Myth of Dog Scenting, 42 HASTINGS L.J. 15, 42 (1990) (explaining that drug detection canines need only determine whether a specific scent is present. Tracking dogs, on the other hand, have the benefit of using both vegetative scents and human scent, while canines performing scent lineups must find one specific scent among many competing, similar scents). The FBI agrees, noting that tracking canines use human scent and environmental cues to locate the track of an individual. Allison M. Curran, et al., Analysis of the Uniqueness and Persistence of Human Scent, 7 FORENSIC SCI. COMM. 2 (2005). Accordingly, we conclude that scent discrimination lineups, when used alone or as primary evidence, are legally insufficient to support a conviction. Like the Supreme Court of Washington, we believe that “[t]he dangers inherent in the use of dog tracking evidence can only be alleviated by the presence of corroborating evidence.” Loucks, 656 P.2d at 482.