So while it's an incredibly emotional issue, we have to be really focused on the evidence. I have to say it was a privilege for me, having been somewhat involved in the drafting of the original legislation, to be able to sit on the select committee and hear the submissions. One thing that I'm slightly surprised about that we haven't heard tonight is the number of submissions from health professionals and scientific experts that made it very clear that there's extreme difficulty to reliably establish an equivalent blood level of a substance with an oral fluid test result, and that neither of these can actually be correlated with impairment. It's much more difficult than in the case of alcohol, and it's particularly difficult with some substances.