> I don't think we have data available that backs up that hypothesis.
I think this is another key point in favor of this device. The traffic safety data that exists comes from police reports. Each officer has to key in the information when they handle an accident, so having a device like this in the hands of those officers is the first step in starting to build that kind of data set.
That's great assuming the device is accurate, precise, and repeatable. It's not clear that breathalyzers can achieve these either but the legal system loves using them as a conviction tool. This could be yet another addition to their dowsing rod toolkit.
I think this is another key point in favor of this device. The traffic safety data that exists comes from police reports. Each officer has to key in the information when they handle an accident, so having a device like this in the hands of those officers is the first step in starting to build that kind of data set.