Ignition Interlocks Effective Tools

Are Ignition Interlocks effective tools in controlling drinking and driving?

A common, albeit too simple, question. First, remember that without Ignition Interlocks most alcohol impaired driving offenders will drive anyway - without any control mechanism in their vehicle. Second, we need to define the goal of an Interlock Program.

The primary goal is to protect public safety. This is accomplished by having the driver pass a breath alcohol test before starting their vehicle. Today's 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

A second goal 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.