Law and Human Behavior

, Volume 32, Issue 4, pp 293–313

The Standardized Field Sobriety Tests: A Review of Scientific and Legal Issues

Original Article


This article details the history and development of the National Highway and Safety Administration’s Standardized Field Sobriety Tests. They are reviewed in terms of relevant scientific, psychometric, and legal issues. It is concluded that the research that supports their use is limited, important confounding variables have not been thoroughly studied, reliability is mediocre, and that their developers and prosecution-oriented publications have oversold the tests. Further, case law since their development has severed the tests from their validation data, so that they are not admissible on the criterion for which they were validated (blood alcohol concentration), and admissible for a criterion for which they were not (mental, physical, or driving impairment). Directions for further research are presented.


Driving while intoxicated Sobriety test Horizontal Gaze Nystagmus HGN Walk and Turn One Leg Stand  Driving safety 

Copyright information

© American Psychology-Law Society/Division 41 of the American Psychological Association 2007 2007

Authors and Affiliations

  1. 1.HoustonUSA

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