Challenging Field Sobriety Tests for CDL Holders in Texas

Field sobriety tests (FSTs) are commonly used by law enforcement to determine whether a driver is under the influence of alcohol or drugs. For holders of a Commercial Driver’s License (CDL), these tests carry significant weight and potential consequences. A CDL holder is held to a higher standard than non-commercial drivers, both legally and professionally. In Texas, challenging the results of field sobriety tests can be a complex and daunting task, but it is crucial for CDL holders who wish to protect their licenses, livelihoods, and reputations.

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Understanding Field Sobriety Tests

Field sobriety tests are a series of physical and cognitive assessments administered by police officers during a traffic stop. The most commonly used tests are the Horizontal Gaze Nystagmus (HGN), the Walk-and-Turn (WAT), and the One-Leg Stand (OLS). Each of these tests is designed to evaluate a driver’s balance, coordination, and ability to follow instructions, which can be impaired by alcohol or drugs.

The Horizontal Gaze Nystagmus test involves the officer observing the driver’s eyes as they follow a moving object, usually a pen or flashlight. The officer looks for involuntary jerking of the eyes, which can indicate intoxication. The Walk-and-Turn test requires the driver to take nine steps, heel-to-toe, along a straight line, turn on one foot, and return in the same manner. The One-Leg Stand test asks the driver to stand on one foot while counting aloud. Each of these tests has specific criteria that officers use to judge whether the driver has passed or failed.

Attorney Deandra Grant

Deandra M. Grant

Managing Partner

Douglas E. Huff

Partner & Criminal Division Chief

Johnny Lanzillo

Criminal Division Senior Associate

Makenzie Zarate

Criminal Division DWI Trial Chief

Texas Attorney Kevin Sheneberger

Kevin Sheneberger

Criminal Division Associate

Issues with Field Sobriety Tests

Field sobriety tests are not foolproof and can be influenced by a variety of factors unrelated to intoxication. Physical conditions such as injuries, illnesses, or age-related issues can affect a person’s performance. Environmental factors like uneven or slippery surfaces, poor lighting, and inclement weather can also impact the results. Additionally, nerves and anxiety during a traffic stop can cause even a sober person to perform poorly.

For CDL holders, these factors are particularly critical. Many CDL holders spend long hours on the road, leading to fatigue, back pain, or leg discomfort, all of which can affect balance and coordination. Moreover, CDL holders may have medical conditions or take medications that do not impair their ability to drive but could influence their performance on FSTs. Understanding and highlighting these issues is essential when challenging the results of field sobriety tests in court.

Legal Standards and CDL Holders

In Texas, CDL holders are subject to stricter legal standards than non-commercial drivers. The legal blood alcohol concentration (BAC) limit for CDL holders is 0.04 percent, half the limit for non-commercial drivers. Additionally, a CDL holder can face disqualification for refusing to take a breath or blood test, failing a field sobriety test, or being convicted of a DWI offense. This disqualification can result in the loss of employment and significant financial hardship.

Challenging the results of field sobriety tests is often a necessary step for CDL holders facing DWI charges. Given the higher stakes, it is vital to scrutinize the administration and interpretation of these tests closely. This includes examining the officer’s training and experience, the conditions under which the tests were conducted, and any potential biases or errors in the process. A successful challenge can lead to the exclusion of FST evidence, which can significantly weaken the prosecution’s case.

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Defending Against Field Sobriety Test Results

To effectively challenge field sobriety test results, it is important to understand the various defenses available. One common defense is to question the reliability and validity of the tests themselves. Field sobriety tests are subjective assessments that rely heavily on the officer’s observations and judgment. Highlighting the inherent flaws and limitations of these tests can cast doubt on their accuracy.

Another defense is to demonstrate that the tests were not administered properly. Officers must follow specific protocols when conducting field sobriety tests, and any deviation from these protocols can undermine the results. This includes the officer’s instructions to the driver, the environmental conditions, and the driver’s physical and mental state at the time of the tests. Documenting and presenting evidence of any procedural errors can be a powerful tool in challenging FST results.

Medical conditions and physical impairments can also serve as a defense against field sobriety test results. Many medical conditions can mimic signs of intoxication, such as neurological disorders, inner ear problems, and certain medications. Providing medical records and testimony to explain these conditions can help to refute the assumption that poor performance on FSTs is due to alcohol or drug impairment.

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The Role of Legal Representation

For CDL holders facing DWI charges, having competent legal representation is crucial. An experienced DWI attorney understands the complexities of field sobriety tests and knows how to challenge their results effectively. They can conduct a thorough investigation, gather evidence, and build a strong defense to protect the client’s CDL and livelihood.

One of the key aspects of legal representation is cross-examining the arresting officer. This involves questioning the officer about their training, experience, and the specific circumstances of the traffic stop and FST administration. An attorney can identify inconsistencies, biases, or errors in the officer’s testimony and use them to challenge the validity of the FST results.

Legal representation also involves negotiating with prosecutors. In some cases, an attorney can negotiate a plea deal that reduces the charges or penalties, which can be particularly beneficial for CDL holders who need to avoid disqualification. Additionally, an attorney can advise on alternative programs or treatments that may be available to help mitigate the consequences of a DWI conviction.

Importance of Timely Action

Time is of the essence when challenging field sobriety test results for CDL holders in Texas. It is essential to act quickly to gather evidence, interview witnesses, and prepare a defense. Waiting too long can result in lost evidence, faded memories, and missed opportunities to challenge the prosecution’s case.

One of the first steps in the legal process is requesting a hearing with the Texas Department of Public Safety (DPS) to contest the automatic disqualification of the CDL. This hearing must be requested within a specific time frame, typically 15 days from the date of the arrest. Failing to request this hearing can result in an automatic disqualification, making it even more challenging to retain the CDL.

Timely action also involves collecting and preserving evidence from the traffic stop and FST administration. This can include obtaining dashcam or bodycam footage, interviewing witnesses, and documenting the conditions of the stop. This evidence can be critical in challenging the officer’s observations and the FST results in court.

Case Results

Not Guilty

.17 Alcohol Level Was Reported

Case Dismissed

Arrested for DWI

Thrown Breath Score Out

.17 Breath Test

Case Dismissed

Assault Causing Bodily Injury of a Family Member

Case Dismissed

Possession of a Controlled Substance, Penalty Group 3, under 28 grams

Trial – Not Guilty

Continuous Sexual Abuse of A Child

Case Dismissed

Driving While Intoxicated With a Blood Alcohol =0.15

Trial – Not Guilty

Violation of Civil Commitment

Dismissed-Motion to Suppress Evidence Granted

Driving While Intoxicated

Dismissed-No Billed by Grand Jury

Assault Causing Bodily Injury of a Family Member with Prior

Case Results

Not Guilty

.17 Alcohol Level Was Reported

Case Dismissed

Arrested for DWI

Thrown Breath Score Out

.17 Breath Test

Case Dismissed

Assault Causing Bodily Injury of a Family Member

Case Dismissed

Possession of a Controlled Substance, Penalty Group 3, under 28 grams

Trial – Not Guilty

Continuous Sexual Abuse of A Child

Case Dismissed

Driving While Intoxicated With a Blood Alcohol =0.15

Trial – Not Guilty

Violation of Civil Commitment

Dismissed-Motion to Suppress Evidence Granted

Driving While Intoxicated

Dismissed-No Billed by Grand Jury

Assault Causing Bodily Injury of a Family Member with Prior

Protect Your Livelihood: Contact Deandra Grant Law Today

For CDL holders facing DWI charges and the daunting prospect of challenging field sobriety test results, having a dedicated legal team is essential. At Deandra Grant Law, we understand the unique challenges that CDL holders face and are committed to providing the vigorous defense you need. Our experienced attorneys will thoroughly investigate your case, challenge the FST results, and work tirelessly to protect your CDL, your job, and your future.

If you or someone you know is a CDL holder facing DWI charges in Texas, don’t wait. Contact Deandra Grant Law today for a consultation and let us help you navigate this difficult time. Your career and livelihood are too important to leave to chance — reach out to us now and take the first step towards protecting your rights and your future.

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