A recent study published by The Washington Post indicates that mandatory interlock requirements, even for first time DUI offenders, deter alcohol involved fatal accidents. A study tracked fatal accidents over a five-year period, in states before interlock laws were first established. Now twenty-two states mandate ignition interlock for first time offenders although other states require them for repeat offenders.
The bottom line, according to this Hopkins Center for Injury Research and Policy Study, indicates that motorists will think twice about driving under the influence if they are aware that, even as a first-time offender, they would be required to use an interlock ignition device.
An interlock ignition device is an instrument is attached to a car that prevents a person from starting an engine while under the influence of alcohol. The motorist must literally blow through a tube, into the device, and if it registers the presence of alcohol the car will not start. It can cost approximately $100.00 for the device to be installed with regular monthly fees for maintaining the device.