As we're talking about how it works within public prosecutions, we heard this from Rory Fowler:
The difference is that the Attorney General is a law officer, the chief law officer of Canada. While the current Minister of National Defence is a lawyer and past ministers of national defence have been lawyers, and it's very easy to advise them when you're a military lawyer, that's not always the case, nor are they a law officer.
The reason why the JAG would give direction to the director of military prosecutions is that it's a lawyer giving another lawyer direction in a very public fashion. By making the director of military prosecutions responsible to the minister—appointed by the minister, accountable to the minister—the JAG is no longer superintending military justice when it comes to military justice before a court martial....
Minister McGinty himself was asked about this and said, “I would be hard pressed to believe that any minister of national defence would want to insert themselves into a prosecution of this kind.”
If it's not going to get used, and the JAG is going to be the superintendent and you need lawyers talking to lawyers—I don't think it's always going to be the case that you'll have a lawyer serving as the Minister of National Defence—then I would suggest it is in line to return those powers back to the judge advocate general.