It's not an issue for treaty partners; it's an internal justice issue. That was determined when the legislation first passed. A decision was made that all of the discretion that was vested in the minister would be delegated to officials, with the exception of a decision on surrender, in order to insulate the minister, as I said earlier, so that he can be as independent as he possibly can be at that stage of the proceeding.
On February 4th, 2020. See this statement in context.