This blog is the third and final part in a three part series discussing the SFST’s that officers administer during DC DUI traffic investigations. The first part dealt with the Horizontal Gaze Nystagmus (or “HGN”), which is the follow the pen test. The second part discussed the Walk and Turn Test, which is the walk the line test. This part discusses the One Leg Stand Test.
During the One Leg Stand Test, the police officer will instruct the person suspected of driving under the influence to hold one leg six inches above the ground and count aloud. The officer will instruct the person to count in the thousands (i.e. “one thousand one, one thousand two, etc.”). The counting will go for thirty seconds but the officer will not inform the person how long to count in advance. Like with the HGN and Walk and Turn, the officer looks for specific cues of impairment. For the One Leg Stand Test, the four cues are: