DUI Field Sobriety Test – Horizontal Gaze Nystagmus Test

07 July 2014

Los Angeles DUI Lawyer

One of the field sobriety tests given to you when you are suspected of driving under the influence of alcohol is the Horizontal Gaze Nystagmus (HGN) Test.  This is the test where the officer holds an object in front of your face and tells you to follow it with your eyes.

HGN is an involuntary jerking of the eyes that may indicate the presence of alcohol or drugs.  The officer will stand in front of you and hold an object towards your face.  It will be held right above eye level.  The officer will tell you to follow the object with your eyes without moving your head.  The officer will move the object at varying speeds.

Depending on the officer’s observations, the prosecution can use this as evidence against you that you were driving under the influence.

You should note that this is a very subjective test and the officer does not video record your eye movement to back up any claims of you driving drunk.  It will all be based on what the officer claims to have seen.   You should also know that HGN is a naturally occurring condition that approximately 4 percent of the population has, which can be caused by a number of reasons other than having alcohol and/or drugs in your system.  This can be used as a possible defense to your DUI charges.

If you were arrested for a DUI, consult an experienced Los Angeles DUI attorney.  At the Law Offices of Nam Q. Doan | OC Legal Defense, I will help you fight your DUI charges and get your case dismissed.  Call today at (714) 248-DOAN (3626) or visit www.OCLegalDefense.com and read the DUI section for more information.

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