What is the Interlock Ignition Device connected to?

An Interlock Ignition Device is connected to a vehicle's ignition system. It requires the driver to perform a breathalyzer test before starting the vehicle, ensuring that they are not under the influence of alcohol. If the device detects a blood alcohol concentration above a preset limit, it prevents the engine from starting. These devices are often mandated for individuals with DUI convictions as part of their rehabilitation and monitoring.