Ignition Interlock Systems

  I doubt that however they came up with the Ignition Interlock Systems.
  A breath alcohol ignition interlock system is a breathalyzer installed on the dashboard of a vehicle, often as required by law following a DUI conviction.
  The ignition interlock system prevents a vehicle from starting until the driver successfully passes a blood alcohol concentration test. Before the vehicle will start, the driver must blow into the BAC tester. If the breath test shows a driver's BAC to be above a set limit, usually around .02-.04%, the starter on the car vehicle will lock and the driver can't use the vehicle. If a driver's BAC is below that level, then the vehicle will start and operate normally.
  These devices are often issued as part of the mandatory punishment for a DUI conviction. A single DUI conviction could put one of these in your car. If you're forced to use one, you will also be responsible for paying for the installation and monthly usage fees for the devices, which may cost you hundreds of dollars.