Was there any error in respect of a question of law?
19It is convenient to deal with the "errors" identified by the primary judge in the order in which they are referred to above.
20As to the first error: I do not understand the reasoning and conclusions of the Tribunal (set out by the primary judge at [17]) as being that the fact of the convictions in 1997 and 2000 justified the finding that the first respondent had been supplying prohibited drugs from the premises he occupied in October 2008 at and shortly before that time.
21The evidence which the Tribunal relied upon to support that finding was the second-hand hearsay evidence in the report of Detective Senior Constable Biffin that an unnamed "witness" had attended the first respondent's house to purchase cannabis from him and had done this on prior occasions; that one of the two perpetrators of the home invasion had asserted that he "knew" that the first respondent was supplying drugs from his home; and that unidentified neighbours of the first respondent had seen people coming and going from the house and "believed" on that basis that the first respondent was supplying drugs.
22To be considered and weighed against that material were the first respondent's sworn declaration that he did not supply prohibited drugs from his home, that he did not sell illegal drugs and that he had not done so. The last statement, that he had not sold illegal drugs, was contradicted by the evidence of the two convictions in the bail report form. More generally, the first respondent's credibility also was called into question by the bail report which included convictions for offences involving dishonesty: R v Aldridge (1990) 20 NSWLR 737.
23When measured against the rules of evidence, there were deficiencies associated with material before the Tribunal. It was second-hand hearsay. With the exception of the "perpetrator", the sources of that hearsay were not identified. The subject matter of some of the hearsay would not have been admissible even if sought to be given by direct evidence; specifically, the statements that the perpetrator "knew" and that the neighbours "believed" that the first respondent was supplying drugs from his home. However, the Tribunal was not bound by the rules of evidence and these were matters which were to be taken into account when weighing the probative value of the evidence. They do not have the consequence that it had no probative value.
24This being the state of the evidentiary material, it was reasonably open to the Tribunal to reject the first respondent's denial that he had been supplying drugs from his home and to find that he had been doing so and that this activity directly resulted in the home invasion and contributed to his injury. The findings of the Tribunal to that effect did not involve any error of law.
25The foregoing discussion also shows that the primary judge was not correct to proceed on the basis that the Tribunal's finding of conduct in supplying drugs in October 2008 was based upon the evidence of the convictions for offences in 1997 and 2000. The Tribunal relied upon that evidence to support its conclusion that the first respondent should not be believed in his denial that he had ever sold illegal drugs. It was not necessary for that conclusion that there have been a close temporal connection between those earlier convictions and the home invasion in October 2008. The evidence supporting the finding of supplying drugs in October 2008 and of the connection between that and the home invasion was the hearsay evidence given by the police officer.
26It is necessary, nevertheless, to say something about the primary judge's conclusion that a temporal connection, presumably between the relevant behaviour and the injury, is an "essential pre-requisite" for such behaviour to fall within s 30(1)(a): [86]. In the language of s 30(1)(a) the relevant connection is that the behaviour "directly or indirectly contributed to the injury". What is required is a causal connection. The use of "contributed" indicates that the behaviour does not have to be the only or a principal cause of the injury. The requirement that the behaviour "directly or indirectly" contribute means that it does not have to operate directly to produce the injury, but may be involved at some earlier point in the chain of causation. Whether there is such a causal connection obviously depends upon the circumstances of each case. Those circumstances may include a close temporal connection between the behaviour and the happening of the injury. However, it is not necessary or essential that there be such a temporal connection for the causal relationship described in s 30(1)(a) to be established. The primary judge's suggestion that the position might be otherwise must be rejected.
27As to the second error: The Tribunal did consider and resolve the conflict between the fact of the convictions referred to in the bail report and the first respondent's denial in his statutory declaration. It did so by weighing that evidence in the light of the other material before it. It was reasonably open to the Tribunal to treat the bail report as correctly recording the fact of the first respondent's criminal history and to prefer that evidence to his sworn denial. Its doing so did not constitute or involve any error of law.
28As to the third error: The evidence of the police officer is not accurately described as opinion evidence and the Tribunal did not treat it as such. Although as hearsay evidence it suffered from the deficiencies referred to earlier in these reasons, it had probative value. The concluding statement in the police officer's report (set out in paragraph 14 of the Tribunal's reasons which is extracted in [17] of the primary judge's reasons) was expressed as an opinion as to the ultimate factual question to be addressed by the Tribunal which was entitled to have regard to the hearsay evidence. The extract from the Tribunal's reasons shows that it considered and relied upon the hearsay evidence. They do not suggest that the Tribunal gave any material significance to that opinion of the police officer.
29The Tribunal was satisfied on the balance of probabilities that the first respondent had used his house for the purpose of selling drugs. It did not misdirect itself as to the required civil standard of proof and the evidentiary material was capable of supporting that conclusion. Its reliance on that material did not involve any error of law.
30As to the final error: When the application for compensation was before the assessor, the first respondent's solicitors were invited to inspect the assessor's file and to make an application for the police report. They were provided with the statement of the police officer and the bail report and their attention was drawn to the possible application of s 30(1)(a). The first respondent addressed these matters in his statutory declaration of 21 October 2010. It is not apparent that any other matters needed to be drawn to his attention to enable him to know what material was relied upon and to understand its significance. As I have already said, the evidence of the police officer supported there being a sufficient causal connection between recent behaviour of the first respondent and the injury. For these reasons, there was no relevant denial of procedural fairness in either of the respects identified by the primary judge.
31The matters relied upon by the primary judge to justify the allowing of the appeal did not involve any questions of law. It follows, there being no discretionary reasons for not doing so, that the orders made by the primary judge should be quashed.
32There is one further matter to which reference ought be made. Order (d) as made by the primary judge provided that on remitter the proceeding was to be dealt with by the Tribunal according to law and in conformity with [113] and [114] of his reasons. The former provided:
"[113] ... In my view, on the foregoing analysis and on the construction of s 30(1)(a) of the Act, the Tribunal's reliance on that provision to deny the appellant's compensation should not stand, with the result that the orders made in the Tribunal must be set aside and the matter should be remitted to the Tribunal to be reheard without regard to the opinion evidence to the effect the appellant was dealing in drugs from the premises." (emphasis added)
33Section 39(5) permits the District Court to set aside a determination and remit a matter to be considered and determined again by the Tribunal. I take the reference in s 39(5)(b) to the further consideration of the Tribunal being "either with or without the hearing of further evidence" to make clear that in accordance with s 38(3), the Tribunal may by leave receive further evidence on the remitted hearing if one of the relevant conditions is satisfied. It is also possible that an earlier decision of the Tribunal to receive or not receive further evidence may have been the subject of the appeal to the District Court with the result that the earlier decision may have to be revisited on the remitted hearing "in accordance with the decision of the District Court on the question of law concerned".
34The order of the primary judge in terms required that on the further hearing the Tribunal not have regard to opinion evidence to the effect that the first respondent was dealing in drugs from the premises. There are potential difficulties in making an order in terms which prevent regard to particular evidence on a remitted hearing. First, the order may or may not reflect the decision of the Court on the relevant question of law. If it does not, it will go beyond what s 39(5)(b) permits and empowers the Court to do. Secondly, the order may not clearly indicate what evidence is referred to. For example, in the present case it is not clear whether the reference is to all of the police officer's evidence or only that part of it which purports to record his opinion that the first respondent was supplying drugs. Thirdly, an order in this form may prevent regard to further evidence on a subject and in doing so be inconsistent with the continued availability of s 38(3) in relation to the adducing of further evidence at the remitted hearing.
35If the decision in a case like the present one is that certain material has no evidentiary value and was not reasonably capable of supporting particular findings or inferences and that is recorded in the reasons, it should not be necessary to make an order which seeks specifically to identify such material. A further determination of the Tribunal "in accordance with the decision of the District Court" would be required to treat that evidence as incapable of supporting those particular findings or inferences.