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HGN |
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For example, the horizontal gaze nystagmus test, one of the "standardized" battery of field sobriety tests used in most states, is of questionable value in determining a person's sobriety, and few police officers can administer it or interpret its results correctly. HawkEye is especially relevant in refining officers' identification of Horizontal Gaze Nystagmus (' After he was stopped by a police officer, Leahy failed a horizontal gaze nystagmus (HGN) test, which measures eye movement. |
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