What are the two stages involved in the One Leg Stand test?

In the One Leg Stand test, the two critical stages involve the Instructions stage and the Counting stage. During the Instructions stage, the officer provides clear and specific directions to the subject on how to perform the test. This includes how to stand on one leg, where to place the other foot, and the specific duration for which to hold this position. The understanding and compliance during this stage are crucial because they set the foundation for trusting that the subject can follow instructions.

The following Counting stage is when the subject must count aloud, typically from one to a certain number (often 30) while balancing on one leg. This stage not only assesses their balance but also evaluates their ability to focus and maintain cognitive function while performing a physical task, which can be indicative of impairment. The combination of these two stages provides valuable information regarding the individual's level of impairment attributable to alcohol or other substances.

Other options do not accurately represent the critical stages of this test, as they either incorrectly identify what is involved or mix elements that are not directly associated with the One Leg Stand test.