All 50 states have ignition interlock device laws DUI offenders. However, the specifics of interlock device laws between states.

In the state of Illinois, both first-time and subsequent offenders must install an ignition interlock device on their cars if they wish to continue driving. According to the office of the Illinois Secretary of State, a person convicted of DUI can choose either to install the device on their vehicle or not drive for the duration of their license suspension.

What is an ignition interlock device?

An ignition interlock device operates on the same principle as a breathalyzer. When you get into the car, you will need to breathe into the device and it will detect if there is any alcohol on your breath. If there is any alcohol on your breath, the car will not start. While the car is operating, you will need to breathe into the device at random intervals to prove that you have not consumed alcohol since the car has been on.

Additionally, the ignition interlock devices issued by the Illinois Secretary of State also have a camera to capture an image of the driver when he or she is breathing into the device. If anybody tampers with the device, it will alert the Secretary of State.

What happens if I refuse the ignition interlock device?

Person convicted of DUI can choose either to install the ignition interlock device or not drive during the period of license suspension. If the driver does not wish to participate in the ignition interlock program and gets caught driving regardless, they will receive a level 4 felony charge. Additionally, a driver who consents to the ignition interlock device may not drive any vehicle that is not equipped with one.