So if it turns out that this regime is not effective at reducing impaired driving, that it hasn't had the desired consequences, and that it is resulting in unfair targeting of certain populations, it will be incredibly important that there is some requirement or impetus for the Government of the day to respond to that evidence and to change the law and potentially to say, "Sorry it didn't work. We're going to have to take a different approach. We might have to go back to more resource for compulsory impairment testing or we might have to do more research into alternatives to saliva tests.", which I have no doubt sound really easy and effective, and the Police Association came and told us that was definitely what they wanted, but we want the test that is out there and applied to drivers to actually detect impaired driving and to discourage it.