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Samples in periodicals archive:
102372, 2010 WL 572082 (Ill Sup Ct) (hereinafter McKown II), the Illinois Supreme Court handed both sides a victory with respect to horizontal gaze nystagmus (HGN) test results in DUI prosecutions.
Drivers are asked to recite the alphabet, stand on one leg, complete a nine-step heel-to-toe walk and watch as a pen is moved in front of them as part of a horizontal gaze nystagmus test.
Cummings was then given a horizontal gaze nystagmus test.
Duteau failed all three field sobriety tests: the horizontal gaze nystagmus, the nine-step walk and turn, and the one-leg stand.
After he was stopped by a police officer, Leahy failed a horizontal gaze nystagmus (HGN) test, which measures eye movement.