“Had they been in force, it is inconceivable that the same principles would have been applied to their interpretation in the context of a set aside application. That is because the whole rationale behind Lord Wilson’s opinion was that the court’s obligation to exercise its wider purview, as Lord Brandon enunciated in Livesey (formerly Jenkins) v Jenkins[1985] 1 AC 424 , arose in the context of a final financial remedies order. It is the last stage of the court’s quasi-inquisitorial jurisdiction on such an application. Had Lord Wilson felt inclined to comment upon an in-force rule 9.9A/PD9A , such comment would have been obiter (and thereby not binding on King LJ in Roocroft) and very obviously limited in scope by Lord Wilson, careful as he is.”