Five Factors That Affect Breath Test

Breath Test DUI Attorney

RJ Ferraro has defended against DUI convictions since 2001

The breath test is the most common way police officers make a determination that a driver has had more to drink than is legally allowed before operating a vehicle. Once an officer observes a driving pattern that is indicative of drunk driving, the car can be pulled over the drive questioned. If the questioning leads the officer to believe the driver has had too much to drink, he or she can ask the driver to submit to a breath test. When the breath test results show an alcohol concentration in the driver’s system of 0.08% or more, a ticket and arrest for DUI can be written. This type of scenario makes it critical for every driver on Florida roadways to know a few things about how breath tests work, and what types of things can have an impact on the test result.

Five factors that affect breath tests in DUI cases are:

  • The calibration of the machine. This is not a factor that is under the control of the driver, but is still a factor just the same. If the machine is not properly calibrated, it will not give off an accurate result.
  • Personal physiological traits such as the driver’s metabolism and mouth temperature. These are things that are still not within your control, but are unique to you specifically. It is important to identify and work through any special circumstances related to you personally. Sometimes medical evidence is needed to support a claim of this type.
  • Whether you blew into the machine in short breaths, or one long breath. Believe it or not, this does make a difference in how the result is computed.
  • What you have eaten just prior to the test.
  • Whether you suffer from certain medical conditions that can “fool the machine.”

An experienced DUI defense attorney knows where to look for factors that help bolster your defense, and can point these things out to the prosecution. Keep in mind though that just because these are possible parts to your defense, not all will apply in every case. We take the time to review your case as it applies only to you, and develop a defense that is tailored to your needs.

For answers to questions about breath tests, call an experienced criminal defense attorney today. Skilled criminal defense attorneys in Stuart and the Treasure Coast are here to help you today. Your first visit is a free initial consultation.

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