Relevant and irrelevant material
36 In the alternative, the appellant claimed that the Federal Magistrate erred in failing to find that the Tribunal fell into jurisdictional error in failing to consider relevant material. The asserted relevant material was that Mr Faisal attended the hearing on 9 January 2004, did not attend on 16 January because he was sick and that he was willing to give evidence on another day.
37 A decision-maker may fall into jurisdictional error if he or she ignores relevant material or takes into account irrelevant material: Craig v South Australia (1995) 184 CLR 163 and Minister for Immigration and Multicultural Affairs v Yusuf (2001) 206 CLR 323 ('Yusuf'). In Yusuf, McHugh, Gummow and Hayne JJ, with whom Gleeson CJ agreed, stated at [82]:
'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 (1995) 184 CLR 163 at 179, 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 been seen to embrace a number of different kinds of error, the list of which, in the passage cited from Craig, is not exhaustive (cf Re Refugee Review Tribunal; Ex parte Aala (2000) 204 CLR 82). 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 the 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 (Craig (1995) 184 CLR 163 at 179).'
38 In my view this claim is misconceived. It obscures the true nature of the appellant's complaint, which is really that the Tribunal did not make arrangements to hear Mr Faisal's evidence on another day. In substance, it is a complaint about procedure not about the lack of consideration of relevant material. The fact that the witness was not available at the hearing on 16 January 2004 but was willing to give evidence on another day could not have materially affected the Tribunal's decision. As the respondent submitted, the material could not have told the Tribunal anything about the nature of the evidence that Mr Faisal may have given. I do not consider that this information was such that the Tribunal was bound to take it into consideration. This does not, of course, answer the question of whether the Tribunal's failure to act on the information and provide another opportunity for Mr Faisal to give evidence was a breach of procedural fairness. This issue is discussed below commencing at [42].
39 Even if the information is regarded as material that the Tribunal was bound to consider, it falls into the category described by Mason J in Minister for Aboriginal Affairs v Peko- Wallsend Ltd (1986) 162 CLR 24 at 40 where his Honour said:
'Not every consideration that a decision-maker is bound to take into account but fails to take into account will justify the court setting aside the impugned decision and ordering that the discretion be re-exercised according to law. A factor might be so insignificant that the failure to take it into account could not have materially affected the decision.'
40 The same analysis applies to the appellant's further submission that the Tribunal took into account irrelevant material. The basis for this submission was the Tribunal's statement set out at [11] above in respect of which it was submitted that this erroneous finding demonstrates the Tribunal mistakenly found that Mr Faisal did not attend the hearing of 9 January 2004 and thus took into account irrelevant material.
41 This submission must be rejected. It is clear that the Tribunal made a factual error. However, the basis of a mistake of fact is not itself an irrelevant consideration. Thus, the erroneous finding that Mr Faisal was not present on 9 January 2004 did not involve the taking into account of an irrelevant consideration or irrelevant material. True the Tribunal made an error but, in itself, this does not amount to an error of law, jurisdictional or otherwise; Minister for Immigration and Multicultural Affairs v Rajalingam (1999) 93 FCR 220 at [146]. In any event, I accept the contention of the respondent that this erroneous finding did not form the basis of any adverse conclusions or findings made against the appellant.