Officers administer field sobriety tests incorrectly 97% of the time
Recently Lance Platt, a certified NHTSA SFST practitioner, instructor and trainer, published a paper in the DWI Journal: Law & Science that examined the differences between the manner in which officer are trained to perform field sobriety tests and the manner in which they actually administer them.
For the Horizontal Gaze Nystagmus test, Mr. Platt recognized 16 elements that make up the test. After examining 360 recorded evaluations, he found only 24 were performed correctly per the NHTSA Manual. Those 24 represent only 7% of the tests administered, meaning that officers administered the test incorrectly 93% of the time.


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