Breath & Blood Tests

Plano DWI Defense Lawyer

When a police officer suspects a driver to be intoxicated or over the legal blood alcohol limit, two of the determining tests performed to determine intoxication are the breath analysis, also known as a breathalyzer test, and the blood alcohol content (BAC) test. The breath test is done by having the suspect breathe into a machine, which then measures the blood alcohol level of the individual. The BAC test is done at a police station or a medical facility, the blood of the suspect is drawn by a certified technician, and is then analyzed to determine its alcohol content. While both of these tests seem to be overwhelmingly accurate, and unquestionably scientific in nature, it is critically important to know that there are a large number of factors that can easily produce a false reading on both of these tests.

A breath test for alcohol content is not always solid evidence. There are many factors that can drastically decrease or increase the reading. One example is the subject's breathing pattern; studies have shown that if the subject hyperventilates for 20 seconds, it can lower the reading of the breathalyzer by approximately 32%. By the same token, if the subject holds their breath for 30 seconds it can increase the results by about 28%. These are just two of the many outside factors that can affect a breath test. One factor that affects the machine itself is calibration. Handheld breath analyzers contain delicate sensors that require recalibration every 6 months to a year. If a breathalyzer is not calibrated correctly it can produce a false reading. This is one factor among many others that can interfere with the machinery and thereby produce an inaccurate reading.

Breathalyzer and Blood Test Accuracy

While the evidence in a DWI charge can be overwhelming, it is important to know that there is no piece of evidence that cannot be combated by a skilled, aggressive, and experienced Plano criminal defense lawyer. This is exactly what the criminal defense attorneys at Zendeh Del law firm are characterized by. At Zendeh Del we know the difficulties a driving while impaired charge can bring, and we are here to help you in your case. We as a firm are committed to protecting and enforcing your constitutional rights throughout your case.

Jason Zendeh Del is a seasoned defense attorney as well as a former prosecuting attorney; this gives him a great advantage over the average defense attorney. Because of his knowledge of how a prosecutor operates, we know how to build an extremely strong defense against any prosecution. We have extensive court room experience and we have a 100% success rate on non-disclosures and expunctions. Don't let the pressure of a DWI charge cause you to make a wrong decision, the criminal defense lawyers at our firm can provide you with a comprehensive defense of your case.

Contact a Plano DWI attorney from Zendeh Del law firm to discuss your case today.