In the One-Leg Stand, for how many seconds must the suspect keep their foot elevated?

In the One-Leg Stand test, the suspect is instructed to maintain their foot elevated for a duration of 30 seconds. This particular length of time is critical as it provides enough opportunity to observe specific indicators of impairment. During these 30 seconds, the officer looks for signs such as swaying, using arms for balancing, hopping, or putting the foot down, which can all suggest that the individual may be impaired. The 30-second duration is standardized to ensure consistency and reliability in the assessment across different individuals and situations.