I would raise with the minister any case that went beyond making an honest judgment of how to act within the rules. Clearly, if there were any evidence of something untoward or fraudulent--a problem or anything beyond the scope of what was doable--we would raise that alert.
Even within the minister's office and the delegated authorities, they are encouraged to consult. So if I saw a major problem I would raise an alert. If I saw a pattern of abuse of authorities, we would brief the minister and his office on concerns and perhaps take additional steps--even on administrative matters, which cumulatively can be important.
But in this case I am really confident that everyone in the department gave the appropriate advice and did the appropriate authorities within a limited perspective, with limited knowledge. These people didn't work for me. They didn't have the whole picture from the minister's office. But I did not see anything that was beyond judgment on this matter.