madhead123:
Hmmm. I know a little bit about public law but I know nothing about exam marking at your university. So take what I say with a pinch of salt.

However, as I observed above, judicial review is generally thought of as being concerned with the legality of public authorities' decisions; therefore, the decision is
unlawful if it has been taken either illegally (in the sense of falling under that head of challenge), or irrationally, or procedurally improperly.
Sometimes it has been said that irrationality and procedural impropriety are grounds for justifying the court's
interference rather than establishing that the authority's decision was
unlawful. However, that is at present a minority way of looking at things, although it may become more prevalent with Article 6 of the ECHR being held in some circumstances to require the court in judicial review to substitute its
own view of the merits of the decision. There, the court is clearly just disagreeing on the merits - rather than holding the original decision unlawful. But that kind of merits review is concerned with ECHR fundamental rights cases and has no application to this situation.
Now I think that fettering discretion would probably come under the head of illegality, but as I say, I am not the best person to ask on this because I don't know what the examiner is after. Irrationality is obviously a separate head, but it is well established that an irrational decision is (throughout the law) regarded as making out an error of law. So the fact that an authority speaks of an
unlawful way of doing things (e.g., fettering discretion) does not mean that its principle would necessarily come under the head of "illegality" in the narrow sense (i.e., as distinct from irrationality or procedural impropriety). Further, the three heads are a neat summary but they do not cover all bases. For instance, there is a case called
Criminal Injuries Compensation Board which permits a decision to be quashed on the basis it was based on demonstrably wrong evidence. That does not fit neatly into any of the three categories.
starX:
If a public hearing is a recognised part of the procedure for revoking a trader's licence and he demonstrates that the hearing was in some way unfair, then that could indeed qualify as establishing a breach of natural justice and, hence, a flawed decision on the ground of procedural impropriety.
Last edited by Solemn Wanderer : 07-05-2008 at 10:19.