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Investigation of DUI Cases: HGN Horizontal Gaze Nystagmus Horizontal Gaze Nystagmus (HGN) is an eye test. Nystagmus is defined as an involuntary jerking of the eyes as the eyes move from the center position off to the side. Alcohol and some drugs c...
Author: Darren Kavinoky
Investigation of DUI Cases: HGN
07th June 2006Investigation of DUI Cases: HGN Horizontal Gaze Nystagmus Horizontal Gaze Nystagmus (HGN) is an eye test. Nystagmus is defined as an involuntary jerking of the eyes as the eyes move from the center position off to the side. Alcohol and some drugs c...
Author: Darren Kavinoky