In State v. Baity, the Washington Supreme Court found the basis for HGN testing, that intoxicated people will exhibit nystagmus, to be generally accepted under Frye. Baity also addressed the admissibility of the 12-step DRE examination, of which HGN was one step, employed by police officers to detect behavior associated with certain drugs and held that it constituted novel scientific evidence. The Court also placed clear limitations on officer testimony based upon this scientific testing.
Michael Baity and Edward Arnestad were each charged in separate prosecutions for driving under the influence of alcohol or drugs (DUI). Continue reading