It is important to understand that the inquiry is not into whether or not it is a good thing to agree to more pokie machines at Sky City in return for them building a $350 million convention centre. That will remain a political issue.
The inquiry is into the overall process for seeking and assessing proposals for an international convention centre, and the adequacy of the assessment of the likely costs and benefits of each proposal.
It will be interesting to see how the competing proposals were assessed. As far as I know, three of them were asking for direct government investment (ie money) into either the capital costs or operating costs or both. The Sky City bid asked for no money, but an extension of their casino licence and various regulatory changes. Comparing the different bids could well be like comparing apples and oranges.
It would be a brave person to predict the outcome of the inquiry. Labour Leader David Shearer proclaimed that the mere fact the Deputy Auditor-General has agreed to look at the issue means it was "obviously something dodgy". One can only imagine how this made his caucus colleague Shane Jones feel, considering his actions are also being investigated by the Auditor-General - and at the request of David Shearer.
The worst case scenario for the Government would be if the Auditor-General found the tender was not adequately or fairly run, and should be done again. This would wound the Prime Minister, and probably mean no convention centre in the near future.
The best case scenario is a clean bill of health, allowing the negotiations with Sky City to conclude and construction on the convention centre to start before the election providing 1,000 more construction industry jobs and the other associated benefits of a $350 million construction project.