Can You Refuse a Breathalyzer in Austin? What Texas Law Actually Says

It is one of the most common questions people have after a DWI stop in Austin: do I have to take the breathalyzer? The short answer is no — you can refuse. But the more important answer is that refusing comes with its own set of consequences that Texas law has deliberately built into the system, and understanding those consequences before you are standing on the side of a road at 2 a.m. is a lot more useful than learning about them afterward.

Here is what Texas law actually says about breath test refusals, what happens when you refuse in Austin, and how a refusal affects your DWI case in Travis County.

Texas Is an Implied Consent State

The starting point is Texas Transportation Code § 724.011, which establishes the implied consent rule. By operating a motor vehicle on a Texas public road, you have already legally consented to providing a breath or blood specimen if you are lawfully arrested for DWI. That consent is implied by the act of driving — you do not sign anything, and it applies whether or not you were aware of it.

Implied consent does not mean you are physically forced to blow into a tube. It means that if you refuse, the law treats that refusal as a violation of a consent you had already given, and consequences follow automatically.

What the Officer Is Required to Tell You

Before requesting a specimen, the arresting officer is required by Texas Transportation Code § 724.015 to inform you of several things: that you have the right to refuse, that your refusal may be admissible as evidence in a criminal prosecution, that your license will be suspended for 180 days if you refuse, and that if you provide a specimen that shows a BAC of 0.08 or higher your license will be suspended for 90 days. The officer must also inform you that you have the right to have a second specimen taken by a person of your choosing.

This is not optional. If the officer fails to properly deliver the statutory warnings, that failure becomes a factor at your ALR hearing and potentially in the criminal case itself.

What Happens When You Refuse

If you refuse to provide a breath or blood specimen after a DWI arrest in Austin, two things happen almost immediately. The arresting officer — whether an Austin Police Department officer or a Travis County Sheriff’s deputy — takes your driver’s license and issues a 40-day temporary driving permit under Texas Transportation Code § 724.032. And DPS initiates the administrative process to suspend your license for 180 days under § 724.035.

That 180-day suspension is the baseline for a first refusal with no prior DWI history. A second refusal within ten years results in a two-year suspension. These are administrative suspensions, separate from anything a Travis County court might impose as part of a criminal sentence.

You have 15 days from the date of the arrest to request an ALR hearing and challenge the suspension. If you do not request the hearing, the suspension takes effect automatically when your temporary permit expires.

Can the State Force a Blood Draw?

Yes — and this is where many people are surprised. Under Texas Transportation Code § 724.012(b), there are circumstances in which law enforcement can obtain a blood specimen without your consent and without a warrant. These include situations where someone has died or may die as a result of the accident, where a child under 15 was in the vehicle, or where you have two or more prior DWI convictions or certain prior DWI-related convictions.

Outside of those specific statutory exceptions, however, the U.S. Supreme Court’s decision in Missouri v. McNeely (2013) and the Texas Court of Criminal Appeals’ application of that ruling establish that a warrantless, nonconsensual blood draw is generally not permissible. Law enforcement in Travis County will typically seek a search warrant from a magistrate when a mandatory blood draw exception does not apply and a driver has refused. Austin Police Department has a no-refusal initiative that operates on certain high-traffic weekends and holidays — during those periods, officers have magistrates standing by specifically to issue blood draw warrants quickly.

What a Refusal Does to Your Criminal Case

Here is where the refusal question gets more complicated than most people expect. Refusing the breath test means the state does not have a BAC number to use against you in court — but it does not mean the state has no case. Texas Penal Code § 49.04 defines intoxication as either having a BAC of 0.08 or higher or having lost the normal use of mental or physical faculties. The prosecution can pursue the second theory entirely without a breath or blood test result.

What the state does have after a refusal: the officer’s observations of your driving, your performance on standardized field sobriety tests, dashcam and bodycam footage, your demeanor and statements during the stop, and under Texas Transportation Code § 724.061, evidence that you refused to submit to testing. That refusal is explicitly admissible against you in the criminal case.

Travis County juries have convicted on DWI charges without any chemical test result. The absence of a BAC number is not a guaranteed defense — it shifts what the prosecution emphasizes, but it does not eliminate the case.

Refusal vs. Blowing — Which Is Better?

This is the question defense attorneys get asked constantly, and the honest answer is that there is no universal answer. It depends on how much you have had to drink, what your driving looked like on dashcam, how you performed on field sobriety tests, whether it is a no-refusal weekend, and what your prior record looks like. Refusing avoids handing the prosecution a specific BAC number, but it guarantees a longer license suspension, is admissible as evidence of consciousness of guilt, and does not prevent the state from getting your blood through a warrant anyway.

A low BAC — say, 0.08 or 0.09 — may actually be more defensible at trial than a refusal in some circumstances, because it leaves less room for the jury to speculate about what you were hiding. A high BAC is a different calculation. These are the kinds of judgment calls that require knowing the facts of the specific stop, the specific officer, and the tendencies of Travis County prosecutors and courts.

What a DWI Defense Attorney Looks at After a Refusal

When someone comes to us after refusing a breathalyzer in Austin, the analysis starts from the beginning of the stop. Was there a valid reason for the officer to pull you over? Were the field sobriety tests administered correctly under the NHTSA standardized protocol? Was the § 724.015 statutory warning delivered properly? Was a warrant obtained for a blood draw, and if so, was there sufficient probable cause to support it? Was the blood sample handled correctly through the chain of custody?

A refusal does not end the analysis — it redirects it. And in some cases, the circumstances surrounding the refusal and the events that followed it are exactly where the defense lives.

Gary Barton is Board Certified in Criminal Law by the Texas Board of Legal Specialization, a credential held by fewer than two percent of Texas attorneys. Before founding Barton & Associates, he prosecuted felony DWI and violent crime cases in Bexar County, including serving as the youngest Major Crimes Unit chief in Texas history, with more than 100 jury trials behind him. He has been on both sides of the breath test refusal question in court.

If you refused a breathalyzer in Austin and are facing a DWI charge, call our Austin office at 512-THE-FIRM (843-3476) or use the Schedule a Free Consultation form on our website. The 15-day ALR deadline may already be running.