It's my understanding that they use mobile alcohol screening as well, so it's not just at stationary positions that they can demand a breath sample.
All of the leading researchers have concluded that the ability to conduct alcohol screening when drivers are stopped outside of sobriety checkpoints is critically important for several reasons, the first of which is that it reinforces the message that if you drink, don't drive. If you do not have the mobile ability to screen drivers who are stopped, the difficulty is that people will try to evade the system.
The other problem, which many people don't realize, is that the rural population represents 30% of the population but 69% of the incidents of impaired driving causing death. If we don't enact mobile screening, it will increase the overrepresentation of rural road users in impaired driving crashes, deaths, and injuries.
The way mobile screening works in generally almost all countries is that every time a driver is stopped, for whatever reason, they're asked for a breath sample. All stopped drivers are asked for a breath sample. There is no individualizing. If you're stopped, it isn't discretionary to provide a breath sample. The studies clearly indicate that adding mobile significantly increases the deterrent impact of the impaired driving law.
The other point I want to make is we have selective breath testing now, and we have 1,000 dead people and 60,000 injuries. If we continue doing exactly what we're doing, we're going to continue to have one of the world's worst records in terms of impaired driving death or injury. We have to do something. Virtually every reputable traffic safety organization recognizes that mandatory alcohol screening is the single most effective way of reducing impaired driving deaths or injuries.
The other point I want to make is that there are four jurisdictions that did exactly what we would do. Those are Western Australia, Queensland, Ireland, and New Zealand. Going from fairly moderate selective breath-testing stops to mandatory alcohol-screening stops, in each and every case there were significant decreases.
One of the two leading traffic safety experts in this area concluded that in every case, mandatory alcohol screening proved to be superior in its effectiveness to achieving accident reductions by approximately 50% over what was achieved through selective breath testing. The leading scholar in the field, Ross Homel, says, “Nothing in the Australian experience encourages the belief that, without [full use of mandatory testing], roadblocks or sobriety checkpoints are capable of delivering” substantial or sustained reductions “in alcohol-related crash deaths.”
If we do not enact mandatory alcohol screening, next year we'll have another 1,000 impaired driving deaths and another 60,000 injuries.