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 ...

The purpose of the HGpeN is to provide a standardized instrument to Law Enforcement for the HGN test battery. NHTSA has stated “Officers do not have standardized instruments with which to make precise ...

Designed, developed and patented with input from a team of SFST/DRE law enforcement professionals, prosecutors and defense attorneys, the HGpeN implements patented technology based on NHTSA guidelines ...