In the context of SFSTs, what is the significance of the Walk-and-Turn test?

The Walk-and-Turn test is significant because it is designed to evaluate an individual's physical coordination and ability to follow instructions. During this test, the subject is asked to walk a straight line, taking a series of steps forward, turn on one foot, and return back along the same line. This requires the individual to perform multiple tasks simultaneously, which relies on good balance, coordination, and the ability to adhere to specified instructions.

Successfully executing the Walk-and-Turn test indicates that the individual likely maintains their physical faculties required for safe operation of a vehicle. Failing to either follow the instructions or maintain balance may suggest impairment, often due to alcohol or drug influence. Hence, the test serves as a valuable tool for law enforcement officers in determining a driver's level of impairment.