What does the Walk and Turn test require as part of its structure?

The Walk and Turn test, utilized in field sobriety testing, involves having the subject walk in a straight line, which is typically imagined or simulated, rather than being marked by an actual physical line. The procedure requires the subject to take nine heel-to-toe steps in one direction, then turn on one foot and return by taking another nine steps back. This test assesses balance, coordination, and the ability to follow instructions, which are often impaired in individuals under the influence of alcohol or drugs.

Choosing the option that references an "imaginary line and 9 steps" is accurate because it aligns with the standardized protocols established for this type of sobriety assessment. The focus on the sequence of nine steps is essential to maintain consistency and validity in the test's outcomes. Other options may misrepresent the number of steps or the nature of the line required for the test.