Ignition interlock devices (IIDs) are rapidly becoming a standard consequence for those convicted of alcohol-related driving offenses. Almost half of the states in the U.S. now have mandatory installation laws for anyone convicted of driving with a blood alcohol concentration (BAC) at the national legal limit of .08, proving that these devices are a solution to prevent drunk driving incidents from occurring. As an IID is technology-based, it stands to reason that at times, the devices can incorrectly detect the presence of alcohol in the breath and blood of the driver. If this happens, keep in mind that it is in your best interest to continue providing a breath sample that proves you are “clean,” so that the false positive result can be explained.
Ignition interlock devices detect the presence of alcohol in the blood stream through a breath test. The alcohol-specific fuel cell technology is highly refined to eliminate the chance of a false positive test that would indicate a driver has been drinking, when he or she has remained sober. In fact, the most common reason that an ignition interlock test fails is because the driver has consumed alcohol. If you have been drinking and your IID detects alcohol in your ignition interlock test, it will be reported to the agency in charge of monitoring your device.
Regardless, If your ignition interlock test fails, you will be given the opportunity to test again after a few minutes. This is to allow any other substances (like alcohol-based mouthwashes) to dissipate from your mouth, or, to give you the chance to consider if you have been consuming alcoholic beverages. After a subsequent test failure, you will be given more time before you can test again. Once your breath test is “clean,” you should be able to operate your vehicle normally.
In the event that your ignition interlock test fails because the IID is broken or needs to be serviced, it is your obligation to have any maintenance or repair done. Be sure to always keep the name and number of your ignition interlock service provider handy to avoid any delays in getting yourself back behind the wheel.