- Breathing that is either too heavy or too shallow.
- Eating or drinking certain foods before the test.
- Electronic interference from cell phones, police radios, and similar equipment.
- Failing to test and re-calibrate the breath test machine regularly.
- Using certain kinds of asthma inhalers before the test.
- Vomiting, retching, or burping within 20 minutes of taking the test.
DUI/DWI
Breath Alcohol Tests May Report False Positives
If you are stopped for drunk driving in New Hampshire, a police officer may ask you to submit to a test to measure your blood alcohol concentration (BAC). If you are inclined to submit to a test, a blood test may be a better choice for a more accurate result, as some breath tests for alcohol can easily produce a false positive read.
A “false positive” on a New Hampshire breath alcohol test occurs when the breath test machine reports that you have a level of alcohol in your breath when in fact you do not have alcohol in your system. A number of situations can cause a false positive result, or a result that is artificially high. These include:
