Horizontal Gaze Nystagmus Test

Q. Why did the officer test my eyes with a pen?A. Officers look for a fluttering of the eyeball which, believe it or not, is indicative of alcohol consumption.  Officers look for a "distinct and sustained nystagmus" at "maximum deviation."  The video depicts one of the six clues that law enforcement are trained to look for in administering the horizontal gaze nystagmus test (the HGN or eye test).  Charles M. Rowland has received the same training as a police officer in administering and evaluating the Standardized Field Sobriety Tests (including the HGN) and he is the only attorney in the...