Are Ignition Interlock (Car Breathalyzer) Devices Effective? Do they work at reducing the number of drunk drivers on the road?

In short, yes, interlock devices work.

Research shows that most alcohol-impaired driving offenders will drive anyway (on a suspended license) – without any control mechanism in their vehicle.

The primary goal of an interlock program is to protect public safety. LifeSafer interlocks accomplish this by having the driver pass a breath alcohol test before starting their vehicle. Our technology makes it virtually impossible to trick or fool the Interlock. The device will prevent the vehicle from starting unless an acceptable breath sample is provided. Studies indicate that less than 2% of offenders are rearrested for alcohol-impaired driving while on the Interlock Program. In virtually every case the offender was driving a vehicle without an Interlock.

The second goal of ignition interlocks is to prevent recidivism, the re-arrest of an offender who has completed the Interlock Program and regained an unrestricted driving privilege. Recent studies indicate that 90% of Interlock graduates successfully drive without a further drinking-driving offense. This compares very favorably with 65% to 80% of offenders who have not participated in the Interlock Program.

Need An Ignition Interlock Device?

LifeSafer offers the most user-friendly device on the market and sets the standard for ease, dependability, and fair pricing. Our alcohol interlock devices meet and exceed the National Highway Traffic Safety Administration (NHTSA) specifications and enable you to continue working and going about your daily life. LifeSafer interlocks have been used by more than 600,000 people and are the most widely used in the U.S. today.