FORT HUACHUCA, Ariz. – Four Soldiers from the 18th Military Police Detachment are now certified in Horizontal Gaze Nystagmus (HGN) after attending a three-day course conducted by the Sierra Vista ...

Appellant Kenny Michael Plouff challenges his conviction for misdemeanor driving while intoxicated (“DWI”). He contends the trial court erred in admitting evidence of the horizontal gaze nystagmus ...