Is the breath test accurate?
In most cases, yes. However, some instances have been recorded where the driver’s pre-existing medical condition or the interference from nearby radio waves can cause the device to give an inaccurate reading. Drivers who have diabetes, gastric reflux, hernias or who have been exposed to acetone may have a higher BAC. Also, radio waves from surrounding devices, including police walkie-talkies can give false readings. If working properly the device should be able to detect this problem.