Mr. Hubert Loftus:

There are five stages. We take a structured approach, in line with the public spending code, to the appraisal, design, tendering and construction. The value of that structured approach means that projects are well-designed and well-developed before going to tender and construction. For the benefit of the committee, we have recently done a review of projects that have a contract price, which is the tender price, to see how that compares with the final account. That can be an indication of what particular issues might have arisen on-site. Across a large number of projects-----