An ignition interlock device is a device that is put in a car or other vehicle to prohibit people who are under the influence of alcohol from driving. The driver will be forced to blow into the ignition interlock's mouthpiece before starting the car to give a breath sample for examination. The car will not start if the driver's blood alcohol content (BAC) exceeds the pre-set level (0.02). After starting the car, the driver may be compelled to provide further breath samples at random intervals while the engine is running. The gadget cannot switch off the automobile ignition after it has been started for safety reasons. The ignition interlock saves and transmits data to the department, which includes test results and infractions.