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One of the standardized field sobriety tests (FSTs) used by law enforcement for a DUI arrest is the Horizontal Gaze Nystagmus (HGN) Field Sobriety test, often abbreviated as the HGN FST.

Dec 14, 2022 · Horizontal gaze nystagmus (HGN) describes uncontrollable horizontal eye movements brought on by alcohol intoxication.

Oct 28, 2023 · Horizontal gaze nystagmus (HGN) is the involuntary jerking of one’s eye when it gazes to the side. Alcohol use exaggerates this jerking motion. The HGN test is evidence of impairment in DUI …

A properly administered Horizontal Gaze Nystagmus will have at least 14 passes of the stimulus and take a minimum of 82 seconds to complete. To learn more about the specifics necessary to properly …

NHTSA | National Highway Traffic Safety Administration

The Horizontal Gaze Nystagmus Test (HGN) is a standardized field sobriety test (FST) that police use to see if you are under the influence of alcohol or have a blood alcohol content (BAC) of .08%.

Learn about the horizontal gaze nystagmus test used by law enforcement officers. For help with your DUI case, contact an attorney in your area today.

Sep 22, 2025 · Horizontal Gaze Nystagmus, or “HGN,” refers to a jerking or stuttering type of movement observed in a person’s eyes that occurs as a result of consuming alcohol or other nervous system …

Despite its history of use and the endorsement of the U.S. Department of Transportation’s National Highway Trafic Safety Administration (NHTSA), the horizontal gaze nystagmus (HGN) field sobriety …