Field Sobriety Tests

Can I be Arrested for Failing a Field Sobriety Test?

Field sobriety tests (FSTs) are there to assist  law enforcement officers trying to gauge the relative sobriety or intoxication of a driver, but they cannot be used to determine blood alcohol level. A police officer who was puloled over a suspicious motorist or who is working a sobriety checkpoint can request a battery of field sobriety tests in determining probable cause of an arrest and the use of an evidentiary alcohol test.

If you’ve been arrested and charged with a DUI based on your performance during a field sobriety test that led to the accumulation of additional evidence against you, contact Cromer Law Offices, LLC. for a no-cost, immediate case consultation 803-254-7900. During our initial consultation, we’ll help you to determine if you should plead guilty or not guilty to your charge. Learn more about our DUI defense.

The Right to Refuse an FST

The motorist has the right to refuse participation in roadside sobriety tests. Declining to take a roadside test does not carry the same consequences as refusing to take a breathalyzer, though the motorist may be arrested on suspicion of DUI for refusing an FST. This it totally up to the police officer.

What Happens in Roadside Sobriety Test?

  • Field sobriety tests, like other aspects of a DUI arrest, must be videotaped. Law enforcement is tasked with providing evidence of driving impairment in the conviction of a DUI. The videotape serves as a witness for both parties.
  • The driver will be asked to perform a battery of field sobriety tests. One test alone cannot accurately indicate sobriety or intoxication. Based on decades of studies, the National Highway Traffic Safety Administration has determined three standardized field sobriety tests administered sequentially, yield the most accurate results — when officers are properly trained. These are the Horizontal Gaze Nystagmus (HGN), Walk-and-Turn (WAT), and One-Leg Stand (OLS). The cumulative test results are more accurate than each individual test. But the NHTSA has not been able to produce completely accurate results.
  • The driver may be asked to blow into a hand-held breathalyzer. A hand-held device is classified as a field sobriety test and may be used for a preliminary BAC measurement. Refusal of a hand-held device, which is not evidentiary in court, should be treated the same as refusing any other FST.

For more see, Challenging DUI Testing.

Bubba Cromer,  is dedicated to protecting the rights of his clients, providing aggressive representation grounded in his 26 years of experience building, writing and interpreting the laws of South Carolina. In fact, Bubba Cromer served on the House Judiciary Committee, whose job it was to address many of the drug laws on the books today. He has also worked in the Richland County Solicitor’s Office.  Contact him today if you have been arrested.

Common Field Sobriety Tests Defined

  • Horizontal gaze nystagmus test
  • The officer passes a pen or similar object in front of your face and you are asked to follow it with your eyes. This tests your body’s physiological response which the NHSTA believes can highlight intoxication in motorists who have become adept at performing motor skills while under the influence. Con: Supposedly, if your eyes jerk or tremble (nystagmus) when the pen is passed from side to side, it indicates intoxication.
  • Walk the line/walk and turn test
  • The police officer will ask you to keep your hands at your side, walk heel-to-toe 12 steps (counting each aloud), turn and walk back. This test asks you to make a very unnatural movement that few sober people can do. There are many challenges to this test: the slope of the road, presence of gravel, heavy clothing in the winter, high heels, passing traffic dangers, distracting squad lights as well as officer spotlights.
  • Stand on one leg test

Only a STORK or a HERON is physically qualified to do this test. The rest of the bipedal creatures have a great deal of difficulty, unless they are gymnasts or police officers who practice it every night by the roadside while arresting fellow citizens. They will ask you to put your feet together and then raise one foot and count up to 30 using “one thousand one,” etc. They will record any swaying, using arms for balance, hopping and putting your foot down. The same test conditions that are troubling for the walk-and-turn, apply here.

  • ABC or number testing: While standing still with your eyes closed, you are asked to move your index finger to your nose.
  • Rhomberg Balance Test: You are asked to stand still, close your eyes, tilt your head up and approximate 30 seconds. The officer is looking for your sense of time, along with whether you can stand still or sway from side to side.