in the seed base cannot be handled. It is physically impossible. Once you get one per cent of seed contamination of seed base, the next year it is five per cent, the next year it is 15 per cent. CHAIR ?Senator Heffernan, I have allocated this time to Senator Cherry and I think you should leave him to ask some questions in his half hour. Senator CHERRY ?Coming back to the issue of the UK crop studies and that fundamental finding in terms of the GM rape seed, the amount of weed matter is reduced by 80 or 90 per cent with flow-on effects for bees, birds, insects, butterflies, the whole works. You are saying that is irrelevant to any of your considerations because that is a matter for the pesticide management authority. Dr Meek ?As you recall, there is a comparison between the GM and the non-GM price of three different crops and you have picked one of them, canola. There are differences in weed levels and also biodiversity. There are two reasons why this is not a direct consideration of the Office of the Gene Technology Regulator. One of them I have already touched on, which is that the study itself makes clear the analysis was on the impact of different herbicide regimes. The other issue in the context of the findings of this study for Australia is that these findings have very little relevance directly to the Australian situation. The reason for that is that the weeds