ADKINS & PURKEY / DWI RESOURCE LIBRARY
HGN, walk-and-turn, one-leg stand, non-standardized tests, DRE evaluations, validation studies and the factors that skew roadside testing in North Carolina.
Huntersville & Locust offices · Lake Norman & surrounding communities
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Field Sobriety Tests
How the horizontal gaze nystagmus eye test works, the six clues officers score, what besides alcohol causes nystagmus, and the NC rules that limit what an officer can say about HGN in court.
Read articleField Sobriety Tests
How North Carolina officers give and score the three standardized field sobriety tests, what the NHTSA research really shows, how NC courts treat the results, and how defense lawyers check the video.
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