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For Ignition Interlock Users, Life Can Really Blow

Ignition interlock devices are saving lives and making the roads safer for everyone.

  • Drunk driving causes approximately 30% of all deaths on the roads and 11% of serious road injuries.

The dangers of driving under the influence of alcohol needs no explanation. After being arrested for a DUI (driving under the influence), it is possible getting a driver’s license back comes on one condition; namely your car must be installed with an alcohol ignition interlock devise for some period of time. This might be a nightmare for those offenders having first to pass the blow test before they can drive off.  It is to protect them and the good of all the other road users.

  • Studies show that the ignition interlock have reduced repeat offenses for those driving while intoxicated by 70% which means if this program was widely implemented the number of road crashes would be greatly reduced. 
  • If the interlock devices are required to be installed after the first incidence the repeat offenses would be slashed by an additional 33%.

How They Work

Virtually all Breath Alcohol Ignition Interlock Devices (BAIID) are installed only after someone is ordered to comply by the courts. Once installed, the driver must blow into the device which detects the blood alcohol concentration (BAC) of the driver, and if the BAC exceeds the pre-set limit the car will not start.  The driver can retry the test again after a short period of time. If they “fail” again they have to wait a longer time. Drivers also must pass “rolling” tests while the vehicle is operational. If they fail to take the test or do not pass, the car horn will sound and the lights will flash indicating the car must pull over.

When a car is fitted with the device, it does not care who is driving, for the engine to start the driver must pass the test. If you do pass the test, you will be required to randomly pull over and take the test again. If the driver does not take the test five minutes after pulling over the lights and the horn of the car will activate. This can be annoying for most drivers but it is necessary to keep all road users safe.


The main benefit that can be cited for the devices is that they prevent incidences of driving under the influence and this has greatly increased the safety for all road users. There are other benefits of the devices, such as;

  • Research has shown that installation of the devices deduce recidivism among repeat and first time offenders.
  • Legal driving status- many offenders drive illegally with disqualifies and suspended licenses many times after they have been drinking. With the installation of the devices the offenders regain legal driving statues and they are capable of maintaining their employment and other responsibilities that require driving.
  • Prediction of future DUI – the devices keep records of breath tests logged and this information can be useful in predicting of any future DUI recidivism risk. Offenders with high rates of failed blood alcohol content tests have high rates of post ignition interlock recidivism. This information can be used in deciding whether to restore the offender’s license or not.
  • Most drunk drivers make approximately 80 trips before they can be stopped. Repeat drivers make up 20% of all drunk drivers detected.




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