How does an alcohol ignition interlock device work?
The driver blows into the device to determine his/her BAC. If alcohol is detected at or above a predetermined threshold, the vehicle will not start. Once the driver passes the test, the vehicle is permitted to start. In most states, the driver must complete “running retests” to make sure he/she remains sober while driving. All tests taken by the driver are recorded and should be transmitted to proper authorities responsible for monitoring the offender.
