Interlock Device Program

• An interlock device for drink driving is a small device that is installed in a vehicle’s dashboard. The device requires the driver to blow into a breathalyser before starting the vehicle, intermittently throughout a drive and if you stop the vehicle without turning it off for a certain duration. If the driver’s blood alcohol concentration (BAC) is above a certain level, the device will prevent the vehicle from starting. The alcohol Interlock Program was implemented to reduce drink drivers from re-offending.

• Interlock devices for drink driving work by using a breathalyser to measure the driver’s BAC. The device is normally set to require the driver to blow into the breathalyser before starting the vehicle, and periodically while driving. In addition, the device may record data about the driver’s BAC and driving patterns, which can be used to monitor compliance with court-ordered requirements. Some devices will have a camera set up in the vehicle to ensure it is the driver who is blowing into breathalyser not the passenger.