It could be within her office. Given her status as an independent officer of Parliament, I think it would be difficult to have an authority above her within government. But there could be an internal review process or a reconsideration based on other facts if, for example, the individual felt that not all of the information was before the commissioner when she made her initial decision. It could be that type of situation.
On February 14th, 2012. See this statement in context.