Ignition interlock device
（重定向自Alcolock）
An ignition interlock device or breath alcohol ignition interlock device (IID and BAIID) is a breathalyzer for an individual's vehicle. It requires the driver to blow into a mouthpiece on the device before starting the vehicle. If the resultant breath-alcohol concentration analyzed result is greater than the programmed blood alcohol concentration (which varies between countries), the device prevents the engine from being started.