So we do have concerns about that and we believe that there needs to be a tension, a stress imposed on officials who would be administering this bill down the track to gather the data, to actually demonstrate, if possible, a causal link between the oral fluid test result and impairment. Now, this research is going on around the world and states like Victoria, South Australia in Australia have struggled to align those two sets of data. But just because a task is difficult doesn't mean we should shy away from it.