Can You Get a DWI in Texas Without Failing a Breath Test?

Many people assume that a DWI arrest in Texas only happens when someone “fails” a breathalyzer. But that’s not the case. You can be charged with Driving While Intoxicated (DWI) even if your breath alcohol concentration is below the legal limit — or if you never took a breath test at all. Texas law allows officers and prosecutors to rely on other forms of evidence, which means you could still face serious penalties based on subjective observations, field sobriety tests, or a blood draw.

Understanding Texas DWI Law

Under Texas Penal Code § 49.04, a person commits DWI when they operate a motor vehicle in a public place while:

“not having the normal use of mental or physical faculties by reason of the introduction of alcohol, a controlled substance, a drug, a dangerous drug, a combination of two or more of those substances, or any other substance into the body.”

This definition means a chemical test result is not required to charge someone with DWI. While a blood alcohol concentration (BAC) of 0.08% or higher is a legal presumption of intoxication, an officer can still arrest you even if your BAC is lower — especially if they claim to observe signs of impairment like:

• Slurred speech

• Poor balance

• Bloodshot or glassy eyes

• Odor of alcohol

• Confused responses

• Poor performance on field sobriety tests

No Test, No Problem? Not Exactly.

If you refuse a breath or blood test, Texas law imposes civil penalties under the Implied Consent Law. That includes a 180-day license suspension for a first refusal. But even without a test result, prosecutors can build a case using video footage, dashcam evidence, bodycam audio, witness statements, and the officer’s report. These subjective observations become key in “no test” DWI cases.

The same is true for borderline BAC results. Some individuals blow just under the legal limit, such as a 0.07%, but still get charged. The prosecutor may argue that despite being under the numerical threshold, you were still too impaired to drive safely.

Medical Conditions and False Positives

Certain health conditions or medications can mimic the signs of intoxication — even triggering false readings on breath tests. Diabetes, acid reflux, fatigue, neurological conditions, or even anxiety disorders can impair physical coordination or speech patterns. That’s why having a skilled DWI defense attorney is critical — someone who can challenge the basis for the arrest and the admissibility of questionable evidence.

Why You Should Never Assume You’re Safe Just Because You “Passed”

Drivers often think that passing a breath test guarantees they’ll be let go. Unfortunately, that’s not how it works in Texas. If the officer believes — rightly or wrongly — that you were impaired, you can still be arrested, booked, and charged. This can result in criminal charges, license suspension, thousands in fines, and even jail time, especially for repeat offenses.

Even worse, your statements and performance on the roadside tests can be used against you, regardless of breathalyzer results.

Call The Law Office of Alex Tyra, P.C. For Your Free Consultation

A DWI charge can have serious consequences, but with the right legal representation, you can fight to protect your rights and future. Let us provide the expert defense you need to navigate the complexities of DWI charges and work toward a favorable resolution.

A Texas DWI conviction can have a lasting impact on many aspects of your life, but understanding these consequences and knowing how to mitigate them can make a significant difference. The Law Office of Alex Tyra, P.C. is dedicated to providing the support and legal expertise you need during this challenging time. Contact us at (903) 753-7499 to discuss your case and explore your options for defense. Our experienced team is here to help you navigate this difficult journey and protect your future.