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Common reasons for a false positive Breathalyzer results

On Behalf of | Aug 24, 2021 | DUI Defense |

When you are stopped on suspicion of driving under the influence in Chicago, the police may request you take a Breathalyzer test to ascertain your blood alcohol content (BAC). It is easy to resign to fate if the test outcome indicates that your BAC level is beyond the legal limit of 0.08g/dL.

However, this does not have to be. You can challenge the Breathalyzer test result. One way of doing this is by demonstrating that the results were inaccurate. Here are common reasons why a Breathalyzer test can give a false-positive result:

If the test is administered too quickly

Breathalyzer equipment can show a higher BAC level if the test was administered too soon after consuming alcohol. This is because the equipment will pick up alcohol residue in your throat and mouth, which can exaggerate the results. Law enforcement officers are required to wait for at least 15 minutes before administering the test.

If the equipment is not properly calibrated

Law enforcement officers are required to follow strict guidelines when administering BAC tests to ensure that the results are as accurate as possible. If the equipment is not properly calibrated, the result can be false positive.

If you are on certain medications

Certain medications, and medical conditions, can raise the acidity levels in your mouth, esophagus or stomach. This can, in turn, result in a false-positive BAC result even if you have not taken any alcohol. Here are are few medical conditions that can give a false-positive PAC result:

  • Heartburns
  • Gastronomical reflux disease
  • Acid reflux

Medications used for managing these conditions can also cause inaccuracy in your BAC test result.

If you ate certain types of foods

Protein bars, energy drinks, ripe fruits and pecans are known to have acidity levels that can cause falsify your BAC test result.

DUI is a serious offense in Illinois, just like everywhere else. If you believe the Breathalyzer test result that prompted your arrest and subsequent arraignment was false, you may consider challenging the results on any of the aforementioned grounds.

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