In how many phases is the Walk-and-Turn test divided?

The Walk-and-Turn test is structured in two distinct phases, which are crucial for evaluating an individual's balance and coordination. The first phase involves the instruction phase where the individual is given specific directions on how to perform the test, including details on how to walk in a straight line and when to turn. This initial phase is essential as it sets the expectations and allows the officer to observe the subject's ability to follow instructions.

The second phase is the performance phase, where the individual executes the actual walking portion of the test. During this phase, the officer pays attention to various indicators of impairment, such as balance issues, stepping off the line, and how the individual turns. Both phases are integral to assessing a subject's sobriety, highlighting the test's methodical design for identifying potential impairment due to alcohol or drugs.