On the one hand, from a very technical point of view, I think you would have to amend the Federal Courts Act because it's the legislation that prescribes how the Federal Court reviews decisions.
On the other hand, from an administrative law standpoint, there are certain principles of justice. Consequently, you would have to clarify, as is being done in Quebec, the roles and responsibilities of each clause to distinguish investigative and adjudicative functions. Then you would have to specify what standard the Federal Court would apply having regard to the structure of the organization.