Walk and Turn test Law and Legal Definition

Walk and turn test is one of the Standardized Field Sobriety Tests (SFSTs) wherein the Driving Under Influence suspect is instructed to walk nine heel-to-toe steps down a designated straight line, turn around to the officer’s satisfaction, then walk nine more heel-to-toe steps back. The officer observes the suspect for any one of a number of standardized clues, including failure to walk heel-to-toe, wrong number of steps, stepping off the line, using arms for balance, and others.