What is a common sign of impairment observed during the Walk-and-Turn test?

The Walk-and-Turn test is designed to assess a person's ability to follow instructions and maintain balance while performing a physical task. A common sign of impairment during this test is the use of arms for balance. When an individual is impaired, they may struggle to maintain their balance and may instinctively extend their arms to stabilize themselves as they walk. This behavior indicates a lack of coordination and balance, which are crucial skills that can be affected by alcohol or drugs.

In contrast, stepping in a straight line, performing the task quickly, and completing the test without hesitation are indicators of proper performance and suggest that the individual is not impaired. Observing a subject who relies on their arms for balance can be a significant cue for officers during field sobriety testing, reinforcing the assessment of potential impairment.