NHTSA’s Standardized Field Sobriety Tests

The National Highway Traffic Safety Administration created three standardized field sobriety tests that law enforcement officers use in their DUI investigations.  They are the Horizontal Gaze Nystagmus test (HGN), Walk and Turn test, and the One leg stand test.  Officers are trained to look for a number of clues in each test.  In the HGN they are looking for 6 clues, in the walk and turn, they are looking for 8 clues and the one leg stand they are looking for 4 clues.  NHTSA conducted a study and it was shown that 88% of individuals who exhibit 4 or more clues in the HGN have a .08 or higher BAC (Blood Alcohol Content).  If 2 or more clues are found on the walk and turn test, 79% of the individuals have a .08 or higher BAC in the study.  If 2 or more clues are found on the one leg stand test, 83% of the individuals have a BAC of .08 or higher in the study.Hiring an experienced attorney to assist you in looking to see if these tests are administered correctly, could go along way in helping you with your DUI case.  Written by Richard N. Blevins visit me at my website or www.mariettacriminaldefense.com

Written by Allen Trapp who is board certified by the National College for DUI Defense and the author of Georgia DUI Survival Guide Visit Website

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