Honour's reasons in this matter without giving them real respect and weight. However, his Honour decided the matter solely on the written materials, which are also before us.
20 The material extracted above in our opinion shows that a claim of potential psychological harm was explicitly made by the Refugee Advice and Casework Service (Australia) Inc ("RACS"). The reference, in the applicant's advisor's submission, to "eventual destruction of emotional wellbeing" seems to make that clear.
21 Further, and despite the unfeigned respect for his Honour's views that we have indicated is appropriate in relation to this matter, the appellant was entitled to have certain inferences drawn in his favour, as to the implications of what he and his wife were saying. If people are, from an early age, considered by the great majority of the people in the society in which they live to be "dirty", are positively treated as if they are dirty, and if there is otherwise widespread and far reaching discrimination against them, it requires no degree in psychology to accept that this may well be very harmful to mental well-being. In any case, the letter signed by Mr Wilson (as well as Sister Anne Higgins) amounts to a professional opinion on the subject. Both that letter and the observations of Father Monaghan have a force that needs no supplementation.
22 We do not find it persuasive on the issue of whether there was a claim made to the Tribunal concerning psychological harm that there was not a complaint, in terms, directly made to the Tribunal by either the appellant or his wife that either of them or any of their children was sustaining psychological harm. While the appellant and his wife had had some degree of tertiary education in the days of the more liberal regime of the Shah, two observations may be made. The first is that it is by no means uncommon for people to be unaware that they or those close to them are psychologically damaged or distressed. That is so even in our society where amateur psychologising is popular. The second is that it is simply not known to what extent there is any popular interest in, or knowledge or discussion of, actual or supposed psychological concepts either in Iran generally or among Mandean people there. In any case, in all kinds of litigation it is a commonplace that people representing themselves without expert advice tend not to put their best foot forward. It is not surprising that, when the obviously capable people associated with RACS came to represent the appellant, a potentially cogent matter was raised for the first time.
23 In our view the matter was clearly and sufficiently raised. In particular, it was put forward that the appellant and his family were likely to suffer considerable discrimination, including in highly personally offensive terms and that the cumulative effect of this was likely to entail severe psychological harm. A link was made between the general observations of Mr Wilson and Sister Higgins and of Father Monaghan and the claims of and on behalf of the appellants. Insofar as psychological harm to the appellant's family members, rather than directly to himself, might have been in issue, that could plainly be taken into account as an element of harm to the appellant himself. To harm a child may also be to harm its custodial parents. In our view, the matters referred to by the learned primary judge properly go more to the possible weight that might be accorded to the claim of potentially serious psychological harm than to whether such a claim was truly or adequately made.
24 In our opinion the material was, as the RACS submission adumbrated, vital to the appellant's case as ultimately presented to the Tribunal. The Tribunal's summation of Father Monaghan's letter was plainly inadequate. The omission by the Tribunal of any reference to Mr Wilkin's and Sister Higgin's letter is striking, as is the failure to consider the potential effects on children of being treated in effect as untouchables. While these instances are not legally significant in themselves, in the circumstances they are pointers to the conclusion, which we feel obliged to draw, that the Tribunal Member must have simply overlooked this aspect of the claim.
25 The Tribunal Member had a legal duty, implicit in the notion of his obligation to "review" the decision of the respondent's delegate, to consider this matter. The claim as put relevantly involved the assertion that:
(a) there was serious discrimination against the appellant and his family as Mandeans; and
(b) the discrimination, because of its potential to cause serious psychological harm, amounted to serious harm within the Convention definition of a refugee and within s 91R of the Act.
These were not merely peripheral matters. They were central to a proper assessment of the appellant's case.
26 The Tribunal Member, it is trite, was obliged to come to what he considered the correct or preferable decision on all the material before him. It is implicit in that task that the Tribunal should carefully attend to such material. What is involved here is not simply the Tribunal's silence as to some of the evidence going to an issue; an issue was itself not addressed. In the view to which we have come, there was, to that extent, a failure to carry out the review function.
27 In S157 the judgment of the majority speaks of the necessity to read s 474 as referring only to decisions which do not involve any "jurisdictional error", because of Ch III of the Constitution: see [76]. It is true that, at some points in the judgment of the majority, as well as in the judgments of the Chief Justice and Callinan J, there are references to matters such as "imperative duties" and "inviolable limitations or restraints" (see e.g. [76]). It was argued for the respondent that these references indicate that, by jurisdictional errors, the majority should be taken to have indicated something narrower than the full range of jurisdictional errors adverted to in Craig v South Australia (1995) 184 CLR 163 and cited in Minister for Immigration and Multicultural Affairs v Yusuf (2001) 206 CLR 323 in the following well known passage at 351:
"It is necessary, however, to understand what is meant by "jurisdictional error" under the general law and the consequences that follow from a decision-maker making such an error. As was said in Craig v South Australia, if an administrative tribunal (like the Tribunal):
'…falls into an error of law which causes it to identify a wrong issue, to ask itself a wrong question, to ignore relevant material, to rely on irrelevant material or, at least in some circumstances, to make an erroneous finding or to reach a mistaken conclusion, and the tribunal's exercise or purported exercise of power is thereby affected, it exceeds its authority or powers. Such an error of law is jurisdictional error which will invalidate any order or decision of the tribunal which reflects it.'
'Jurisdictional error' can thus be seen to embrace a number of different kinds of error, the list of which, in the passage cited from Craig, is not exhaustive. Those different kinds of error may well overlap. The circumstances of a particular case may permit more than one characterisation of the error identified, for example, as the decision-maker both asking the wrong question and ignoring relevant material. What is important, however, is that identifying a wrong issue, asking a wrong question, ignoring relevant material or relying on irrelevant material in a way that affects the exercise of power is to make an error of law. Further, doing so results in the decision-maker exceeding the authority or powers given by the relevant statute. In other words, if an error of those types is made, the decision-maker did not have authority to make the decision that was made; he or she did not have jurisdiction to make it. Nothing in the Act suggests that the Tribunal is given authority to authoritatively determine questions of law or to make a decision otherwise than in accordance with the law.
28 There may be difficulties in maintaining this argument, both on a proper reading of the various judgments in S157 and by reason of the summary of the effect of S157 in Re Minister for Immigration & Multicultural & Indigenous Affairs Ex Parte Applicants S134/2002 (2003) 195 ALR 1 at 5 in terms suggesting no such restriction at [15]:
"Central to the operation of the new Pt 8 is the definition of "privative clause decision" in s 474(2). Section 474 is construed in Plaintiff S157/2002 v The Commonwealth of Australia, with the result that, if they were infected by jurisdictional error, the decisions here of the Tribunal and the Minister were not privative clause decisions." (emphasis added)
29 However these matters may be, even on the narrow view of the effect of S157 proposed by counsel for the appellant, it cannot be other than an important matter, going to the core of the Tribunal's jurisdiction, to overlook crucial material amounting, as Allsop J put it in Htun v Minister for Immigration and Multicultural Affairs (2001) 194 ALR 244 at 259, to an integer of the claim. In that case, Allsop J, with whom Spender J agreed, said that "To make a decision without having considered all the claims is to fail to complete the exercise of jurisdiction embarked on". His Honour then made clear that this includes a failure to examine all the integers of any claim, saying "The claim or claims and its or their component integers are considerations made mandatorily relevant by the Act for consideration in the sense discussed in Minister for Immigration and Multicultural Affairs v Peko-Wallsend (1986) 162 CLR 24 … and Minister for Immigration and Multicultural Affairs v Yusuf (2001) 206 CLR 323" (emphasis added). Merkel J agreed with Allsop J in the result and was not at odds with Allsop J's approach. Another Full Court (Black CJ, Wilcox and Moore JJ) agreed with this approach in W396/01 v Minister for Immigration and Multicultural Affairs (2002) 68 ALD 69 at 78-81 [31]-[38].
30 The Tribunal's error in our view involved the failure to perform an imperative duty and amounted to a jurisdictional error able to be corrected by this Court despite s 474 of the Act. Section 39B of the Judiciary Act gives this court "jurisdiction with respect to any matter in which a writ of mandamus or prohibition or an injunction is sought against an officer … of