During the Walk-and-Turn test, how many steps should the subject take in a straight line?

In the Walk-and-Turn test, the standardized procedure requires the subject to take a total of nine steps in a straight line. This portion of the Standardized Field Sobriety Tests (SFST) is designed to assess the subject's balance, coordination, and ability to follow instructions. During the test, the individual is instructed to walk heel-to-toe along a straight line, turn around, and return in the same manner. The requirement to take nine steps is critical for the assessment, as it allows the officer to observe specific indicators of impairment, such as difficulty maintaining balance or turning. Thus, the correct answer reflects the established protocol for conducting this test.