An “Ignition Interlock Device (IID)” is a device installed in your vehicle, which you blow into and it measures your blood alcohol level.  it connects through your vehicle’s ignition system, and prevents the vehicle from starting until you have provided an appropriate breath sample.  In addition to the initial breath sample to start the vehicle, you are required to submit to rolling tests within 5 to 15 minutes, and then to random rolling tests not to exceed every 30 minutes.