But the point that he makes, that actually even drug-checking services might make it inevitable that there will be people who can't be prevented from consuming dangerously; I'm not sure that is necessarily the case. The availability of drug-checking services in a sense in an environment where there is no judgment made and it's accessible, I think, can go a long way to changing behaviours, as I think the Victoria University research on last summer's activity around drug-checking services showed. Two-thirds of those who used-drug checking services changed their behaviour, either declined to consume at all or reduced their level of consumption, or took away material that was about harm reduction.