Frequently Asked Questions

Under Leandra’s Law, when anyone is convicted of any felony or misdemeanor drunk driving offense the court will be required to impose - in addition to any fine, jail, or prison sentence - a period of probation or conditional discharge. During that period, the individual will be required to install and maintain an ignition interlock device, for at least six months, in any motor vehicle they own or operate.

Before a vehicle’s motor can be started, the driver must exhale into an ignition interlock device (IID) also known as a breath alcohol ignition interlock device (BAIID). If the driver’s blood alcohol concentration (BAC) is 0.025 percent or higher the engine will not start.

No. At random intervals after the engine has been started, the device will require additional breath samples. If a sample is not provided or if the blood alcohol concentration is 0.025 percent or higher, the device will record the event, warn the driver and then start an alarm (horn honking and/or a loud interior alarm) until either the ignition is turned off or a clean breath sample is provided. Additionally, some of the devices have built-in cameras and keep a photographic record of who provides the breath sample.

When someone is convicted of impaired driving and ordered to have an interlock installed, he or she will be referred by local ignition interlock monitors to manufacturers and their installation service providers designated by the state.

The cost depends on the vendor and the level of ignition interlock service, but generally costs approximately $100 for installation, $100 for de-installation and a monthly fee of $100. In general, it is the responsibility of the convicted drunk driver to pay all the fees associated with installing and maintaining these devices.