Dr LIZ CRAIG (Labour): Thank you, Madam Speaker. Over the last couple of years, I've had quite a few people contacting my office and quite a lot of concerns about the chemicals and sprays going into the environment, and not just in the context of the Mataura dross situation, but a lot of them are concerned around the use of herbicides, weedkillers, and the tendency to spray them in our waterways or around our waterways or just along the kerbsides rather than manual weeding. I think that's why, thinking about the Hazardous Substances and New Organisms Act, it's really important to make sure that we know that chemicals are safe and they're used in a safe way.