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In this video, we dive into the Horizontal Gaze Nystagmus (HGN) test, a key tool used by officers during field sobriety tests. Learn what nystagmus is, how it's tested, and why it's important for assessing intoxication. We also cover common mistakes officers make and how they can affect the accuracy of the test. Watch for insights into proper test administration and the science behind it! • Varghese Summersett PLLC • versustexas.com • Our team is made up of experienced criminal lawyers and former prosecutors with offices in Fort Worth, Dallas, Southlake, Houston. We handle state criminal cases throughout North Texas. We also handle federal criminal cases across the country. • Criminal Specialists by the Texas Board of Legal specialization: • Benson Varghese: https://www.versustexas.com/benson-va... • Anna Summersett: https://www.versustexas.com/anna-summ... • Letty Martinez: https://www.versustexas.com/letty-mar... • Criminal Defense Attorneys: • Christy Jack: https://versustexas.com/attorneys/chr... • Tiffany Burks: https://versustexas.com/attorneys/tif... • Robert Huseman: https://versustexas.com/attorneys/rob... • Mike Hanson: https://versustexas.com/attorneys/mik... • Alex Thornton: https://versustexas.com/attorneys/ale... • Audrey Hatcher: https://versustexas.com/audrey-hatcher/ • Connect with Varghese Summersett • / versustexas • / versustexas • / versustexas • / 3715834 • Channel Page: • / @varghesesummersettpllc7161 • 0:00: What is Horizontal Gaze Nystagmus? • 0:31: How drinking affects the eyes (jerking) • 1:00: Different types of nystagmus, i.e. rotational nystagmus • 2:25: Proper administration of the HGN test • 2:35: Qualifying the driver for the test • 3:22: Using a stimulus (pen with light) • 4:22: Standardized tests • 4:40: Demonstration: Checking for equal tracking and pupil size • 5:45: Lack of smooth pursuit • 7:23: Distinct and sustained nystagmus at maximum deviation • 8:49: Onset of nystagmus prior to 45 degrees • 9:20: Spotting improper administration testing errors • 10:22: Failing the test • 10:37: Problem with HGN: Most officers administer it incorrectly • 11:27: Audience questions about HGN test
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