You may be asked to complete the Walk and Turn Test. The Walk and Turn test is one of the battery of three tests that is part of the Standardized Field Sobriety Tests.
The Walk and Turn test requires the subject to stand in a starting position, hold that position while the officer explains the rest of the test, walk nine heel-to-toe steps along a real or imaginary line, execute a turn, and make nine heel-to-toe steps on the return trip.
The person may not use his arms for balance, and may not step off the line. The person does not need to count the steps, but the person needs to make sure nine steps are taken, no less and no more.
After conducting the test, the officer will count the number of clues he has observed. A missed-step does not count unless the person's heel fails to be within a half inch of the toe. A military pivot is considered a bad turn.
Interpretation of WAT Test
The most frequent clues on the walk and turn test are: 1) not holding the starting position and 2) failing to execute a proper turn.
In North Carolina, with so many military people, the turn executed will be a military pivot that does not comply with the instructions. In addition, frequently people will stand in the starting position, and then step out to a more comfortable position. Since the person has not followed the officer's explicit instructions to only begin when the officer says begin and to hold the starting position until told to begin, the person will have created another clue.
Generally, fewer than 4 clues is considered good performance. 4 clues is marginal performance. And greater than four clues is considered bad performance.