Senator PAYNE (New South Wales—Minister for Defence) (14:53): Again, in terms of your language, Senator Rhiannon: you may refer to it in that way, but we know—and in fact, you know, if you are frank with the chamber—that this is a legacy contamination issue that the Australian government and a number of other international governments are handling. It doesn't only pertain to defence sites. It pertains to airports, and it pertains to sites used by rural fire services and a number of industry participants, particularly in the fuel area. I think there is a substantial way to go in the investigation process for all of those— The PRESIDENT: Senator Rhiannon, on a point of order. Senator Rhiannon: Yes, Mr President, I'm drawing your attention to the question of relevance. The question was: how has your department investigated the role of the company in the contamination scandal? It was not about what they've done. It was specifically about that company, and companies with contracts. The PRESIDENT: Senator Rhiannon, I think the minister was addressing the other part of the question you raised. Again, I state that, if there is a preamble to a question, a minister is allowed to address that as well as the question asked at the end. Senator PAYNE: There are, of course, thousands of contracts between Defence and a very large number of businesses in Australia. Senator Rhiannon, if I have anything further to add in relation to the Aurecon matter, I will take that on notice and bring that back to the chamber. The PRESIDENT: Senator Rhiannon, a final supplementary question.