The patented timing system takes the guesswork out of testing Horizontal Gaze Nystagmus (HGN) in accordance with NHTSA guidelines. Designed for both use in the field and training, the X3 is ...

Dr. Karl Citek, a widely renowned expert in the field, evaluated the HGpeN and stated it is a “useful device for training law enforcement officers on how to conduct the HGN test”. The HGpeN is ...

4. Eye Examination The DRE examines the subject for HGN, vertical gaze Nystagmus (VGN), and a lack of convergence. 5. Divided Attention Psychophysical Tests The DRE administers four psychophysical ...

The Pennsylvania Supreme Court has affirmed a Superior Court ruling that a horizontal gaze nystagmus test provides sufficient evidence for probable cause and an arrest in DUI cases. In Commonwealth v.

The prosecution wants jurors to hear about the results of a horizontal gaze nystagmus test given to Golden on July 21, 2008, the day he swerved into Lozier's lane on Route 47 in Middle Township.

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 ...