What is the difference
between DWI breath
and blood tests?

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What is the difference between DWI breath and blood tests?

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The way breath and blood alcohol tests work let’s start with the breath test. You blow into this machine and it’s called an intoxilyzer, depending on where you’re at it could be the 5,000 or it could be another model. Well, you blow into this and the general consensus is your breath leaves your body at 34 degrees Celsius and as you blow into it, it passes your breath molecules through an ultraviolet light to measure the number of alcohol molecules.

Now blood is a little different. When you have a blood test, they will draw your blood, they’ll draw two vials of it and they will send it out to the lab. They have a procedure they go through but they test your blood to find out the alcohol content that was in it.

In both the breath and blood there’s a lot of areas for mistakes you just need to know where to look for them. And that’s what we do we look for the areas where error could be made in the testing of your breath or your blood sample.

As a prior police officer who made DWI arrests and a seasoned DWI trial attorney who focuses on DWI defense; Stephen T Bowling, has the knowledge necessary to defend the field sobriety tests, breath tests, and blood tests.

At Stephen T Bowling, Austin DWI Lawyer, we understand the severity of a DWI on your record and the intricacies of fighting a DWI charge!

If you have been arrested…

Your FREEDOM is potentially at stake. A conviction can have a huge impact on your job, relationships, and your future. You need to act fast.

Proven Defense by a Former Law Enforcement Officer

Many people who are charged with an Austin DWI just assume there is no way to fight it. They think the best they can hope for is a smaller fine or a reduction in the amount of time they lose their license. We focus on defending anyone accused of a DWI. With the right legal counsel, there are other outcomes. Depending on the facts of the case, what if

  • Instead of months of suspension, you don’t lose your license at all?
  • Instead of making a deal for probation, you never get convicted?
  • Instead of having a DWI conviction, your record stays clean?
  • Instead of cutting bad deals, you get a vigorous DWI defense?

While every case depends on the facts and circumstances at play, mounting an aggressive defense to DWI charges may be your best option. The Austin Criminal Defense attorneys at Stephen T Bowling, P.C., handle all drunk driving cases, defending clients in both the criminal proceedings and driver’s license hearings.

Don’t trust just anyone with your DWI defense. Contact the law firm of Stephen T Bowling, PC, by e-mail or call us at 512-599-9000 to schedule your free consultation with an Austin DWI lawyer to discover some strategies we pursue in defending Austin Driving While Intoxicated cases.

We offer payment plans and accept major credit cards, including Visa, MasterCard, and Discover.

Sworn to Protect Our
Client’s Liberty.


Stephen Bowling, reviewed our case and discussed his recommendations clearly. He kept us up to date each step of the way with continued explanations. He was readily available for questions/concerns through the process. We would reach out to them again in the future for any legal concerns.



Stephen is Great, Great , Lawyer!! He give you weekly updates on not just your case but also on what’s going on with his firm as well!!! Stephen is also very communicative and very understanding on any situation!! I would hands down Refer Stephen to anyone with any situation!!! Great job Stephen words can’t describe what you have done for me!!!!


Beat Your DWI.
Keep Your License.