What does the 'C' clue refer to in the Walk and Turn test?

The 'C' clue in the Walk and Turn test refers to a person's inability to maintain balance while listening to instructions. This clue is significant because it indicates a potential impairment in cognitive and physical coordination, which can be associated with the influence of alcohol or other substances.

In the context of the Walk and Turn test, which is commonly used in field sobriety assessments, the ability to listen carefully to instructions while simultaneously maintaining balance is crucial. If an individual struggles to keep their balance during this crucial step, it suggests a level of impairment that may affect their ability to safely operate a vehicle.

This balance issue aids officers in assessing a person's overall level of sobriety, as not being able to multitask—like processing instructions and physically responding—can be indicative of intoxication or cognitive impairment. Thus, recognizing this 'C' clue is essential for drawing conclusions about a driver's fitness to drive.