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Administering the horizontal gaze nystagmus test involves having the subject follow an object with their eyes. Hold the object approximately twelve inches away, moving it from side to side. Observe for any eye movement that indicates impairment, as these results are critical in the SFST. Proper technique is essential for reliable assessment.

To administer the walk and turn test, instruct the subject to take nine steps heel-to-toe along a straight line, then turn and return. Ensure they maintain balance and follow your instructions. Watch for signs of instability or failure to keep the proper position. This test is a crucial part of the SFST to measure coordination and attention.

The SFST process identifies several specific clues to assess impairment. Generally, law enforcement officers may look for around four to six clues per test. The accumulation of these clues from various tests can provide a clearer picture of a driver’s condition. Knowing the number of clues can help you understand the seriousness of the SFST.

Performing an SFST requires following specific procedures to ensure accuracy. Officers start with the horizontal gaze nystagmus test, followed by the walk-and-turn test, and finally the one-leg stand test. Each phase assesses a driver’s balance, coordination, and overall attentiveness. Proper execution is essential for the SFST to yield reliable results.

To execute the walk and turn field sobriety test, have the individual stand heel-to-toe, ensuring they maintain proper posture. Instruct them to take several steps forward, turning around, and returning in the same manner. It’s crucial for them to focus and follow every instruction accurately to achieve reliable results. Using platforms like US Legal Forms can help clarify rules and processes for both parties involved in such tests.

Performing a lack of convergence test involves evaluating how well a subject can follow an object visually. This simply means asking them to focus on a single object, often a pen or finger, and watch it as it moves towards their nose. The person should attempt to keep their eyes on the object without straying. Observing whether both eyes move together gives insight into their visual capacity and potential impairment.

The walk and turn test involves several clear instructions that must be followed carefully. First, the individual must stand with one foot in front of the other, with their arms at their sides. They then take nine heel-to-toe steps in a straight line, pivot, and walk back. It is important to emphasize maintaining balance and not stepping off the line as these actions are critical for accurate evaluation.

In total, there are 8 specific clues that can indicate a failure on the SFST. These clues are spread across the three tests and may include signs like stumbling, swaying, and not following instructions. Officers are trained to recognize these clues effectively during an evaluation. Understanding these can help individuals be aware of their performance during a field sobriety test.

Performing SFSTs involves a systematic approach and understanding the three standardized tests used to measure sobriety. Ensure that the testing environment is calm and that the person understands all the instructions. Conduct each test in sequence: begin with the horizontal gaze nystagmus, followed by the walk-and-turn, and finish with the one-leg stand. This structure allows for reliable and repeatable results.