Field Sobriety Tests

What are Field Sobriety Tests?

Field sobriety tests (FST) are agility tests that law enforcement uses to determine if a person is impaired by drugs and/or alcohol. If a person is suspected to have been driving under the influence, law enforcement may request that the person perform a series of field sobriety tests before deciding to make a DUI arrest.

Inaccuracies of Field Sobriety Tests

Most people think that field sobriety tests can determine if a person is under the influence of drugs and/or alcohol. However, this is not true. In many cases, people have performed poorly during field sobriety tests for reasons other than intoxication. A person can perform poorly or fail the field sobriety tests for several reasons, including: poor lighting, slippery road conditions, poor instructions, and medical conditions that may impair the person’s coordination.

If you have been charged with driving under the influence due to the results of a field sobriety test, it is imperative that you contact a San Diego DUI lawyer. A lawyer will be able to challenge the validity of these test results, and may successfully have your charges reduced or dismissed completely.

The field sobriety test is made of several different tests, with some of these tests varying from state to state. The three tests that are standard to a field sobriety test in every state are:

  • The walk-and-turn: This test has the individual walk nine steps in a “heel-to-toe” fashion, turn around, and walk back the same way they came. It is intended to determine if the person’s balance has been affected by drugs or alcohol.
  • The one-legged stand: This test involves the person standing on one leg for a extended period of time. Like the walk-and-turn, it is used to determine the individual’s balance.
  • The Horizontal Gaze Nystagmus: This test has the individual following an object (usually a pen) with only their eyes. It is used to see if the person can smoothly follow the object, or if their eyes are jerking due to being under the influence.

DUI Defense Attorney in San Diego, CA

Have you recently been arrested in San Diego, CA for drunk driving and/or DUI charges? You need an experienced lawyer to represent you in court. Your San Diego DUI attorney will not only help your case, but will defend you and your constitutional rights. Don’t risk your future, family, employment or reputation after a DUI conviction. Contact DUI Crew to speak with someone who can answer your questions and assist in getting a favorable outcome of your case.
image 1

Do I need an attorney?

It is in your best interest to retain a San Diego DUI lawyer after being arrested. Don’t risk your freedom, license and having a criminal record, get help from an experienced attorney at DUI Crew.

image 2

What are my options?

I was arrested for DUI, what can I do about it? After being arrested for DUI you may be unsure of what to do and what your options are. Our experienced attorneys will guide you through the process.

image 3

Get Answers to Your Questions

We strive to be a one-stop source for your legal questions. Get answers to your questions about DUI, drunk driving, the DMV, court processes and much more on our FAQ’s page.


“I highly recommend Mr. Williams to anyone! He is very personable and is extremely educated with what he is doing. He handled my DMV case and got my charges in the court hearing reduced to a “Wet Reckless”. After talking to Howard I was more confident and less shameful with my case. Howard always returned my phone calls within 24 hours.”  – Client 2012

Talk to a lawyer today! We are available 24 hours a day!

Talk to a Lawyer Now!

Google Map


1650 Hotel Circle North
Suite 210
San Diego, CA 92108
Phone: (619) 500-9939


This website is for informational and promotional purposes only and is deemed accurate at the time of publishing. This notice does not create any attorney-client relationship between DUI Crew, and potential clients, nor shall any information in this document be considered privileged in accordance with such relationships or constitute legal advice. Further, this website is an advertisement and communication which contains testimonials about or endorsements by past and current clients of DUI Crew. Each case is unique with its own facts and the law is constantly evolving. When you read how and you should keep in mind that this testimonial or endorsement does not constitute a guarantee, warranty, or prediction regarding the outcome of your legal matter. The video features a paid actor, not an actual attorney.