If a drunk driver is caught and reprimanded through fines, loss of license, and even jail time, does it mean that the lesson is learned? Unfortunately, the data says no. The hope is always that he or she will never drive under the influence of drugs or alcohol again. An ignition interlock device can greatly reduce the number of drunk drivers on the road by enforcing behavior change and consequences for harmful choices. Click here to learn more about the effectiveness of interlock devices in keeping drunk drivers off the roads.