Law enforcement agencies rely on breath test devices to measure blood alcohol content during traffic stops. However, several factors can lead to unreliable results, casting doubt on the accuracy of these devices.
Understanding the limitations of breath test devices is helpful for anyone facing drunk driving charges.
1. Calibration issues
A potential reason breath test device results may be unreliable is calibration issues. These devices require regular calibration to ensure accurate measurements. If a device does not undergo regular calibration and maintenance, it can produce inaccurate readings. Factors such as temperature changes, environmental contaminants or improper storage can also affect calibration, leading to unreliable BAC measurements.
2. Residual mouth alcohol
Alcohol left in the mouth can affect breath test results. Drinking alcohol, using mouthwash, or even burping before the test can leave alcohol vapors in your mouth. Since breath test devices measure alcohol in the breath, not the blood, this can lead to falsely high BAC readings.
3. Medical conditions and diet
Certain medical conditions and dietary factors can also affect breath test results. Acid reflux, diabetes or hypoglycemia can alter the composition of breath, potentially leading to inaccurate BAC readings. Low-carbohydrate diets or consuming certain foods can also produce acetone in the breath. Breath test devices may mistakenly interpret acetone as alcohol, resulting in higher BAC readings.
Why accuracy matters
Accuracy in measuring a person’s intoxication is crucial because it can significantly impact someone’s life. An inaccurate BAC reading can lead to wrongful DUI charges, affecting a person’s job, reputation and freedom. It’s important to remember that just because the police say or do something doesn’t mean it’s always right. Mistakes can happen, and understanding the potential issues with breath test devices can help you challenge any discrepancies.
While breath test devices are important for enforcing DUI laws and keeping roads safe, certain factors can make them less reliable. If you’re facing DUI charges, it’s vital to understand these potential issues and seek guidance to address any discrepancies in the test results.