1. Field sobriety tests & DUI investigations The eye test given at the roadside in a DUI investigation is a test of “horizontal gaze nystagmus.”2 Horizontal gaze nystagmus refers to an involuntary jerking of the eyes as the eyes gaze toward the side. In addition, if you are experiencing ...
Horizontal Gaze Nystagmusoccurs as the eyes move to the side (horizontally). It is the observation of the eyes for Horizontal Gaze Nystagmus that provides the first and most accurate test in the Standardized Field Sobriety Test battery. Although this type of nystagmus is most accurate for determin...
102372, 2010 WL 572082 (Ill Sup Ct) (hereinafter McKown II), the Illinois Supreme Court handed both sides a victory with respect to horizontal gaze nystagmus (HGN) test results in DUI prosecutions. Supreme Court: HGN testing is good evidence, but not in this case: in People v. McKown,...
Although it is found to have accurate results, the HGN test alone isn’t sufficient evidence to prove drunk driving. Call or text 602-682-5270 or complete a Free Case Evaluation form DUI Blog Posts: What to Do If You’re Stopped for a DUI This Thanksgiving Thanksgiving is a holiday ...