Hans Kelsen is still honored as a great jurist, whose work, among other things, had tremendous practical consequences. In the work of this well-known Austrian, the constitutional lawyers were always interested in the issue of norm setting and their judicial review.
However, we pay particular attention to the question of the review of the actual constitutional laws and their philosophical basis. Reflections on the so-called immutable, or - to use Kelsen's words - "non-derogable" norm are by no means new, even if this question has been very prevalent in jurisprudence lately.