William Edward WHITSON v. STATE of Arkansas CR 93-404 863 S.W.2d 794Supreme Court of Arkansas Opinion delivered October 18, 1993 1. AUTOMOBILE — DWI — RELEVANCE OF HORIZONTAL GAZE NYSTAGMUS TEST. — Testimony about the driver’s nystagmus (involuntary jerking of the eyeball which is aggravated by depressants such as alcohol or barbiturates) was relevant for […]