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SFST Review Questions and Answers | Latest Version | 2025/2026 | Correct & Verified
What is the main goal of the SFST battery during a DUI investigation?✔✔To determine probable cause for arrest based on impairment clues.
Why must officers provide clear instructions before administering SFSTs?✔✔To ensure the subject understands the tasks and the results are valid.
What does the Horizontal Gaze Nystagmus (HGN) test measure?✔✔Involuntary jerking of the eyes as they move horizontally.
Why should SFSTs be administered on a level, dry surface?✔✔To prevent external factors from affecting test performance.
What does an officer observe during the Walk and Turn test?✔✔Balance, coordination, and the ability to follow instructions.
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How many clues can be observed during the One-Leg Stand test?✔✔Four total clues based on balance and timing behavior.
Why is it important for officers to remain neutral while administering SFSTs?✔✔To avoid influencing the subject’s behavior or the interpretation of results.
How can divided attention tasks help identify impairment?✔✔Because impaired individuals struggle to focus on multiple tasks at once.
Why is consistency critical in administering SFSTs?✔✔To maintain standardization and ensure reliability of the results.
What should an officer do if a subject has a medical condition affecting their performance?✔✔Make note of the condition and consider alternative evaluations.
Why is documentation of SFST results essential?✔✔To support findings in court and ensure transparency of the investigation.
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