SFST SCORING SHEET (CHECK ALL THAT APPLY) Horizontal Gaze Nystagmus: ☐ Check for eyeglasses ☐ I’m going to check your eyes. ☐ Put feet together, arms down at your side. ☐ Keep your head still. Follow the stimulus with your eyes only …

The Horizontal Gaze Nystagmus (HGN) Field Sobriety Test checks your eyes for involuntary jerking as you gaze to the side. The test begins by the police officer placing the tested person in the instructional stance where the feet are placed together and the arms are kept to the side.

DWI Detection and Standardized Field Sobriety Test (SFST) Participant Manual. PDF, 86.47 MB. DWI Detection and Standardized Field Sobriety Test (SFST) Instructor Guide REFR… PDF, 25.4 MB. DWI Detection and Standardized Field Sobriety Test (SFST) Participant Manual RE… PDF, 24.96 MB. PowerPoint Presentations: Main Training

Instructions: HGN – Test • Have suspect remove glasses Explain the following: • I am going to check your eyes • Keep your head still and follow this stimulus with your eyes only. • Keep following the stimulus with your eyes until I tell you to stop. • (Check Tracking). • …

The following information on field sobriety tests and drug recognition evaluation information was complied form various sources, and should be evaluated and/or confirmed with appropriate scientific research. SFST Instructions (Standardized Field Sobriety Tests) Horizontal Gaze Nystagmus Instructions (HGN) 1. I am going to check your eyes.

STANDARDIZED FIELD SOBRIETY TESTS (SFSTs) PROCEDURAL VERBIAGE “HORIZONTAL GAZE NYSTAGMUS” A. Instructions (1) Instruct the subject to stand with their feet together and arms to side. (2) Have subject remove eyeglasses and ask about contact lenses. (3) Position stimulus 12 to 15 inches in front of nose and slightly elevated.

SFST SCORING SHEET (Check All that Apply) Horizontal Gaze Nystagmus (HGN) Yes No Are you wearing glasses or contacts? I’m going to check your eyes. Stand with your feet together, with your hands by your side. Look at the stimulus and follow the stimulus with your eyes only. Do not move your head. Keep

Oct 16, 2024 · Correct decisions to arrest were made 95% of the time based on the 3-test battery (HGN, WAT, aLS). This is the third SFST field validation study that has been undertaken. Each has shown that the SFST 3-test battery is the only scientifically validated and reliable method for discriminating between impaired and unimpaired drivers.

STANDARDIZED FIELD SOBRIETY TESTING PROCEDURES HORIZONTAL GAZE NYSTAGMUS INSTRUCTIONS 1. Please remove your glasses (if worn). 2. Put your feet together, hands at your side. Keep your head still and look at and follow this stimulus with your eyes only. 3. Keep looking at the stimulus until told the test is over. 4. Do not move your head. 5.

Learn about the horizontal gaze nystagmus test used by law enforcement officers. For help with your DUI case, contact an attorney in your area today.