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Tag Archives: NHTSA HGN

Just How Robust is the Horizontal Gaze Nystagmus Test?

What does it mean for something to be robust? Some of the synonyms of the word “robust” are strong, sturdy or powerful. In 2007 the National Highway Traffic Safety Administration (NHTSA) undertook a study to see just how “robust” or “powerful” the Horizontal Gaze Nystagmus Test was in the prediction of blood alcohol levels in humans. The study was titled “The Robustness of the Horizontal Gaze Nystagmus Test”, Southern California Research Institute, in conjunction with the U. S. Department of ... Read More »

HGN Robustness Study; DWI related

HGN: Robustness Study; DWI related Facts revealed by Dr. Lance Platt who did a PhD on HGN, former cop & State of Texas trainer of cops with NHTSA inside sources on a HGN Robustness Study: 1. The NHTSA HGN Robustness study is comprised of only 9 subjects tested. 2. It involves NO baseline. You can’t do a study without a negative control baseline. 3. It took 5 years to publish the “results” because it kept being sent back due to ... Read More »