Senator RUSTON (South Australia—Minister for Families and Social Services and Manager of Government Business in the Senate) (14:55): Obviously, because it is a trial, we are seeking to build up and develop a body of evidence so we can understand the magnitude of the problem and also understand where people may well sit on the spectrum of the seriousness of their drug addiction or their substance abuse problem. We understand that the cost to society of people who have long-term drug addiction is very, very significant. The $65,000 amount you referred to, as I mentioned in my previous answer, is not a cap. It's not an amount we are applying per person. It is just an extrapolated number that came from the $10 million and the estimated number of people who may test positive twice during this particular trial. What we would say is that the cost to society of people who are on drugs and the cost to themselves, their families and their communities are immense. We believe that getting people off drugs and deterring them in the first place from even trying drugs is one of the most important things the government can do for all Australians.