Archive for November, 2008

How well do IIDs work – security and tampering?

Tuesday, November 18th, 2008

At first glance, the IID sounds rather easy to circumvent. If one has to blow into a nozzle to start the car, there appear to be several easy ways around this requirement. Have a friend blow into the IID; inflate a balloon before you drink and attach it to the device; keep some sort [...]

How well do IIDs work – accuracy?

Monday, November 17th, 2008

An IID is designed to perform in the relatively adverse environment of an interior of a car. The device is subjected to more difficult conditions than other law enforcement breath testing devices. The IID accounts for the imperfect conditions of a car’s cabin by allowing the driver three chances to provide a valid breath sample. [...]

How well do IIDs work – accuracy?

Thursday, November 13th, 2008

An IID is designed to perform in the relatively adverse environment of an interior of a car. The device is subjected to more difficult conditions than other law enforcement breath testing devices. The IID accounts for the imperfect conditions of a car’s cabin by allowing the driver three chances to provide a valid breath sample. [...]

how does the IID work?

Tuesday, November 11th, 2008

When a driver enters a vehicle, he is prompted to give a breath sample by cues from the device. In the winter, the device may take a few minutes to warm up. To ensure that the sample is not created by mechanical means, some IIDs require a particular breath pattern to be followed; others measure [...]

What is the IID? (Wisconsin)

Thursday, November 6th, 2008

An IID is a breath alcohol test instrument mounted in an automobile, designed to allow a vehicle’s ignition switch to start the engine only when a driver’s breath alcohol concentration (BrAC) is below a predetermined alcohol set point. When the BrAC is at or above the alcohol set point, the device prevents the driver from [...]