The distinction between jurisdictional facts that enliven decision-making power (which the privative clause cannot validate if absent) and procedural requirements for the exercise of that power (which the privative clause may render directory) is critical to migration law. The case was subsequently overtaken by the High Court's decision in Plaintiff S157/2002.
The full text is available to signed-in members, including the 129 later cases that cite this judgment.
54 of the 129 citing cases carry a classified treatment. How each court treated it is available to signed-in members.