Terms and Definitions Related To Drinking and Driving. Terms and Definitions Related To Drinking and Driving.

 

 

 One-Leg-Stand (OLS) test
 

One-Leg-Stand (OLS) test

One of the three tests that make up the standardized field sobriety test battery. This test requires a subject to stand on one leg, look at his or her foot and count out loud to thirty. The subject is assessed on the ability to understand and follow instructions as well as the ability to maintain balance for thirty seconds. [post-publication note (August 1999), sentence should read: "...count out loud until told to stop."]

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