"For my own part, in the circumstances of this case I do not think that the referee's findings of fact should be generally re-agitated in the court. As a broad proposition, depending upon the circumstances of each case, the court will not reconsider disputed questions of fact where there is factual material sufficient to entitle the referee to reach the conclusions he did, particularly where the disputed questions are in a technical area where the referee enjoys an appropriate expertise. …
[His Honour then referred to an unreported judgment of Rolfe J.]
Rolfe J went on to say that he was satisfied from a reading of the report as a whole that it was reasoned and that there was factual material upon which the findings by the referee could properly be made. Noting that it had not been put that there was insufficient evidence to support the findings, but rather that the referee had come to the wrong conclusion, his Honour said that he was not so satisfied, and that to require the court to reconsider disputed questions of fact would render the purpose of the referee reporting to the court futile. It seems to me that is an approach appropriate to this case."
26 In the same case, Mahoney JA said at 567 that "[t]he right to be heard does not involve the right to be heard twice".
27 In White Constructions (NT) Pty Ltd v Commonwealth of Australia (1990) 7 BCL 193, 195, Cole J said (in a passage referred to in that part of the judgment of Giles J at first instance in Super that was extracted in the judgment of Gleeson CJ on appeal):
"The purpose of referees reporting to the court on disputed questions of fact is rendered futile if the court is to reconsider disputed questions of fact in circumstances where it is conceded that there is factual material sufficient to enable the referees to reach the findings they did. In circumstances where the court, having scrutinized the referees' report, has a comfortable feeling of satisfaction that the factual issues have been properly explored and considered, in my view the court should adopt the referees' report on findings of fact."
28 In Chloride Batteries, Cole J referred at 68-69 to the unreported judgment of Marks J in the Supreme Court of Victoria, Integer Computing Pty Ltd v Facom Australia Ltd (10 April 1987). Again, as I read the judgment of Gleeson CJ in Super, his Honour accepted as correct what Marks J had said, which included the following:
"The plaintiff had the opportunity and took advantage of it, to put before the special referee all the matters put to me. It would be mischievous and, indeed, wrong to allow, certainly at the great expense which inevitably would be involved, the parties to put at nil so much of the exploration already done. Even if I was persuaded, which I am not, that this Court might well reach a different conclusion in some respects from that of the special referee, it would not be proper to allow territory to be re-explored by qualifying adoption of the reports."
29 In Chloride Batteries, Cole J said at 67 "that the Court should not automatically adopt a report received". However, he said, the Court should "have regard to the futility of a process of re-litigating an issue determined by the referee in circumstances where parties have had an opportunity to place before the referee such matters as they desire". His Honour said further that the court should have regard to cost. He then said:
"If the report shows a thorough, analytical, and scientific approach to the assessment of the subject matter of enquiry, the Court will have a disposition towards acceptance of the report, for to do otherwise would negate the purpose of and the facility of referring complex technical issues to independent experts for enquiry and report. This disposition may be enhanced in circumstances where the parties … have had the opportunity to place before the referee such evidence and technical reports as they may wish."
30 In Foxman Holdings, Cole J said at 620 that the principles enunciated in Super did not require the court to revisit all the evidence, nor did they contemplate that the court, when considering adoption, should have regard merely "to some selected portions favourable to the party opposing or supporting applications": particularly where there were credit-based fact findings.
31 His Honour then referred to what Gleeson CJ had said in Super, relating to misapprehension of the evidence or perversity or manifest unreasonableness in fact finding. Cole J said that "patent misapprehension of the evidence" referred to lack of understanding as distinct from according different weight to different aspects. He said that the reference to perversity or manifest unreasonableness in fact finding relates "to the exceptional case where it can be clearly demonstrated that no reasonable tribunal of fact could have reached the decision achieved." This was, he said, a higher standard than "unsafe and unsatisfactory". It appears that his Honour thought that perversity or manifest unreasonableness could not be found where there was material that could support the impugned findings of fact.
The extent of a referee's obligation to give reasons
32 In Xuereb v Viola (1988) 18 NSWLR 453, Cole J said at 469:
"Quite apart from Pt 72, r 11(c), natural justice requires that a referee give reasons for his opinion. This is not just to permit the court better to exercise its functions under Pt 72, r 13. The deeper reason is that it enables the parties and the disinterested observer to know that the opinion of the referee is not arbitrary, or influenced by improper considerations but is the result of a process of logic and the application of a considered mind to factual circumstances. I adopt, with respect, the passage in the judgment of Samuels JA in Strbak v Newton (Court of Appeal, 18 July 1989, unreported), in speaking of the requirements for reasons in the judgment of a District Court judge, as being an appropriate statement of principle applicable to the statement of reasons required by a referee:
… "it is going too far to suggest that in every case a judge must submit the material before him or her to the most meticulous analysis and carry into judgment a detailed exposition of every aspect of the evidence and the arguments. What is necessary, it seems to me, is a basic explanation of the fundamental reasons which led the judge to his conclusion. There is no requirement, however, that the reasons must incorporate an extended intellectual dissertation upon the chain of reasoning which authorises the judgment which is given.
In the present case, the reasons are certainly succinct; but that is often to be regarded as a judicial virtue. Trial judges must always endeavour to balance their duty to explain with their duty to be brief"."
33 In Hughes Bros Pty Ltd v Minister for Public Works (55011/1991, 17 August 1994, unreported; BC 9402885), Rolfe J said (adopting the BC pagination) at 13-14:
"In my opinion the Court must be able to see and follow a reasoning process. That does not, in my view, impose an unnecessary burden upon the Referee. The nature of what is required is that a reasoning process be disclosed, or sufficiently disclosed, to satisfy the Court that the finding was one based upon such an intellectual exercise. The performance of that task is not fulfilled by ultimate conclusions unsupported by reasoning. …
In the case of reports to the Court where it is necessary for the Court to decide what should be done with the report to give it legal effect, there should be, at least, sufficient reasons indicating what has led the Referee to the conclusion. In the absence of reasons the Court is left to speculate how the Referee arrived at a decision."
Cavasinni's challenges
34 Mr M G Rudge SC, who appeared with Mr C C Dwyer of counsel for Cavasinni, submitted that although the report on its face appeared to show a thorough analytical and scientific approach to the assessment of the relevant subject matter, closer analysis showed that it did not meet that standard. He submitted that the analysis was in fact superficial and that the referee had overlooked evidence which was not the subject of serious contest before him.
35 Cavasinni sought to make good that submission by referring in some detail to seven separate aspects of the report. I shall deal with each of those attacks in turn, although it should be borne in mind that there was a substantial overlap between some of them.
36 With one exception, Cavasinni did not submit that there was no material to support the referee's conclusions. Nor was it submitted that the parties had been deprived in any way of the opportunity of putting before the referee such evidence and submissions as they wished. It is apparent that they had had, and had availed themselves of, ample opportunity to do so.
Shrinkage and cracking
37 There was evidence of cracking in the Ciccarelli retaining wall. The parties' experts agreed, and the referee (who possesses qualifications both as a structural engineer and as a lawyer) agreed that a concrete structure, such as the wall in question, was likely to contain shrinkage cracks. The key point of difference between the parties' experts was whether the observed cracking was attributable to shrinkage, or to some externally imposed force.
38 For the Ciccarellis, Messrs Beretta and Shirley gave evidence. But their principal structural engineering witness was Mr David Smee. He appears to have first inspected unit 2 on 9 April 2002. He produced a report setting out his observations and opinions. He inspected the property on a number of occasions thereafter and produced further reports.
39 Cavasinni's expert witness was Mr Mostyn. He, of course, had been retained before proceedings were commenced. He inspected unit 2 on a number of occasions both before and after the date of Mr Smee's first inspection, and produced a number of reports.
40 At the referee's direction, Messrs Smee and Mostyn inspected unit 2 together. They produced a joint record of their observations. They then engaged in a conclave with the referee of which, unfortunately, there is no official transcript.
41 Mr Mostyn said that the observed cracks, on both the eastern (internal) and western (external) faces of the Ciccarelli retaining wall, were consistent with shrinkage cracks. He supported this by calculations performed by him based on certain observations and certain assumptions. Mr Smee, on the other hand, said that the cracks were either caused by the lateral loads imparted from the Cavasinni property as a result of the activities carried out, or were exacerbated by those loads. He pointed to a number of features of the cracks which, he said, supported his opinion.
42 The referee (who, as I have mentioned, had had a view) accepted Mr Smee's view. In doing so, he placed weight on the lay evidence that the cracks had not been observed prior to the commencement of the relevant works and that they, and their effects (the ingress of mud and water), were observed after the commencement of those works and while they were being carried on. The referee relied further on lay evidence as to the appearance of, at a particular point, an inward bow in the Ciccarelli retaining wall, consistent with the application of lateral force from the Cavasinni land. He relied on the evidence as to deformation of the crane rails and malfunction of the crane, which had not been observed before the commencement of work on the Cavasinni land and which were observed after that work had commenced.
43 The referee reasoned that the lay evidence was consistent with Mr Smee's opinion.
44 There was no doubt that the work undertaken on the Cavasinni land had transmitted loads onto the Ciccarelli retaining wall. Mr Mostyn acknowledged that this was inevitable. The question was whether the transfer of lateral loads from the Cavasinni land to the Ciccarelli retaining wall as a result of the work undertaken by Cavasinni caused the damage of which the Ciccarellis complained.
45 The referee concluded that the observed cracking was not consistent with what would be expected from shrinkage alone. On balance, he preferred Mr Smee's evidence and opinions to those of Mr Mostyn. He concluded that whilst there may have been pre-existing shrinkage cracks, the observed damage had been "predominantly caused by the transmission of a lateral loading from the Cavasinni property onto the Ciccarelli wall" (report paragraph 78).
46 Cavasinni submitted that the referee failed to consider Mr Mostyn's unchallenged evidence that the measured crack widths were less than the width that would be expected (according to his calculations) from shrinkage cracking. It is correct to say that the referee did not explicitly refer to this evidence. However, the obligation on a referee to give reasons does not require that he consider, analyse and accept or reject every piece of evidence, every expression of opinion, and every argument put before him. The referee did deal with the difference between Messrs Smee and Mostyn as to the significance of the cracks. He accepted Mr Smee's evidence that the cracks had opened up more recently as the result of external pressure: an opinion based on observations that Mr Smee had made of the relationship between the cracks on the interior and exterior faces of the wall. The referee was entitled to prefer that practical evidence to Mr Mostyn's theoretical analysis. In paragraph 77 of the report, he did so.
47 In my judgment, the referee analysed the relevant factors on this issue with sufficient particularity to show that he applied his mind in an analytical way to the essential differences. Undoubtedly, he applied his own expertise, as he was entitled to do. He reached a conclusion that was supported by, and open to him on, the evidence. Applying the principles that I have stated, I see no basis for rejecting his conclusion on this issue.
Repair of cracks
48 In essence, Cavasinni's complaint was that although Mr Smee (it said) had acknowledged that only a limited number of the cracks were consistent with the application of external force, the referee allowed the cost of repair of a greater number.
49 This criticism overlooks the referee's findings in relation to the causes of the cracks. In substance, he found, they were either caused by, or exacerbated by, the application of lateral forces from the Cavasinni land as a result of the works carried out. On that basis, it was open to the referee to reach the conclusion that he did as to the number of cracks that required repair as a result of Cavasinni's activities.
50 The actual costing was carried out either as a result of applying rates or costs agreed between the relevant experts retained by the parties (Mr Edward Brincat for the Ciccarellis and Mr David Plaister for Cavasinni) or, in some cases, upon a preference for the evidence of one over the other for reasons given by the referee. No challenge was made to the actual method of quantification (in this or any other case); where a challenge was raised, it was on the basis that the items should not have been allowed at all or, (as in this case) should only have been allowed to a much smaller extent.
51 There is no basis for rejecting the referee's conclusions in relation to the repair of cracks.
Drainage
52 The Ciccarellis submitted before the referee that the necessary rectification included the installation of an effective drainage line behind (ie, to the west of) their retaining wall. It was thought that such a drain had been installed when the wall was built, but that it was likely to be damaged either as a result of the transmission of lateral loads from the Cavasinni property, or as a result of rectification work to the exterior of the Ciccarelli retaining wall. In fact (and contrary to the understanding of, among others, Mr Beretta - who had designed the Ciccarelli retaining wall) the installed drain was located on the eastern side of the wall and was protected, both from lateral loads and from the effects of any repair work, by concrete footings under the western edge of the slab.
53 The only evidence on this point came from Mr Smee. In paragraph 8.3 of his report dated 30 April 2002 (exhibit P5 in the reference), he said:
"During sealing of cracks the ground would be excavated behind the retaining wall and it should be possible to check the existence of, and/or the condition of the sub soil drain behind the wall.
If the sub soil drain is in existence and operating effectively then this does not become an issue.
If the sub soil drain is in existence but has been damaged by adjacent works then its repair/replacement should be at the cost of Cavasinni.
If the sub soil drain is not in existence or is installed but obviously has not been installed in an effective and workmanlike manner, then the sub soil drain cost rests with Ciccarelli."
54 Both Mr Rudge and Mr D T Miller of counsel, who appeared for the Ciccarellis, agreed that there was no other relevant evidence.
55 It is apparent from Mr Smee's report that he did not say, as the referee concluded, that it would be necessary to install an effective drainage line to the west of the Ciccarelli retaining wall as part of the rectification works. That may be an available inference from what he did say. However, it would appear that the referee has simply applied his own expertise in forming the conclusion to which I have referred. Whilst a referee is undoubtedly entitled to apply his or her expertise in assessing the evidence of expert witnesses, I do not think that a referee is entitled to use his or her expertise as a substitute for evidence. Thus, if there had been a contest between (say) Mr Smee and Mr Mostyn as to the necessity for a drain, it would have been open to the referee to prefer the evidence of one over the other. But when there is no evidence of the necessity for drainage, I do not think that the referee should have supplemented the deficiency in the way that, apparently, he did.
56 I therefore conclude that this aspect of the report should be rejected.
57 Since there was no evidence before the referee, I do not think that it is open to me to reconsider the matter. Nor do I think that there is any point in sending the matter back to the referee. It will be necessary for the referee to give the Ciccarellis leave to reopen, and for the Ciccarellis to adduce further evidence on, the point. Having regard to the cost of this item (the referee allowed $19,855), I do not propose to take this course.
Bowing and tilting in the Ciccarelli retaining wall
58 There was bowing and tilting (from the vertical) in the Ciccarelli retaining wall. The question between Messrs Smee and Mostyn was whether the observed bowing and tilting was due to the application of lateral loads from the Cavasinni land, or whether it was the way the wall was built. Mr Mostyn carried out a theoretical deformation analysis. The referee concluded in paragraph 86 that "the assumptions inherent in Mostyn's analysis and its theoretical nature render his calculations of limited value". He concluded at paragraph 87 "that the measured tilting and bowing … was not pre-existing and is, on the balance of probabilities, attributable to lateral loading from the Cavasinni property onto the Ciccarelli wall."
59 Mr Smee gave evidence of observations made by him that, he said, were consistent only with the imposition of lateral loads on the wall from the Cavasinni land. They included that the Jointex filling between the top of the retaining wall and the pre-cast concrete panels showed evidence of sliding damage consistent with there having been relative movement between the two components of the wall. Mr Smee also placed significance on the nature and relative shapes and sizes of the cracks.
60 There was a conflict of evidence in an area in which the referee possessed expertise. He analysed the evidence in an appropriate way. He preferred the opinion of Mr Smee, based on physical observations, to the theoretically-based opinion of Mr Mostyn. He paid attention also to the observations and opinions of Mr Beretta.
61 I am satisfied that the referee's analysis paid appropriate regard to the principal points in issue. The conclusion to which he came was open to him on the evidence. I do not think that it can be regarded as unreasonable or perverse simply because he preferred the evidence of one expert to that of another: particularly where, as here, the preferred evidence is consistent with lay evidence (see para [9] above).
62 In my judgment, there is no basis shown for rejecting this aspect of the report.
Distortion of the portal frames and crane rail
63 It is clear that the referee was influenced by the evidence, which he accepted, from Messrs Ciccarelli and Digirolama (see para [10] above). That evidence supported the conclusion that the distortion in the portal frame, and impact on the crane rail, had not been present in unit 2 when it was built. It supported the conclusion that the problems had only become apparent in about mid-2001.
64 There was again a conflict between the experts. That related both to the causes of the distortion of the portal frame structure and as to the ability of any distortion that was caused to be transferred to the crane rails. Mr Smee gave evidence of a mechanism by which this could happen. It is apparent that the referee accepted his evidence.
65 The referee's conclusion was expressed in less than clear terms in paragraph 93 of the report:
"93. The evidence as outlined above does not overwhelmingly illustrate a causal link between the deflection of the Ciccarelli wall and the distortion of the steel frames. However whilst it is possible there may have been other factors involved, there is nothing more than speculation to rely on. Accordingly, I am persuaded that on the balance of probabilities, the damage to the roof of the building and the out-of-alignment crane rails should be attributed to the movement of the Ciccarelli wall under loads transmitted from the Cavasinni property."
66 It was said that his conclusion was perverse, having regard to some snippets from the cross-examination of Messrs Beretta and Smee that were proffered in written submissions.
67 Alike with Cole J, I do not think that it is appropriate to have "regard to some selected portions favourable to the party opposing … adoption" of the whole of the evidence before the referee. I see no reason in the referee's discussion of the evidence to think that he overlooked any significant part of the evidence of the witnesses. The conclusion to which he came was consistent with the observations of lay witnesses. Even without that support, it would have been open to the referee, by the application of his own knowledge and experience, to prefer the evidence of one expert to another. When the conclusion to which the expert came is consistent with accepted evidence of lay observations, I find it almost impossible to see how the conclusion can be said to be perverse.
68 Cavasinni submitted that the expert, having found that there may have been other factors involved, could not be persuaded on the balance of probabilities that the relevant problems should be attributed to loads transmitted from the Cavasinni property without discussing and discounting those other factors. It said that it had a "legitimate expectation" that he would do so.
69 I do not agree. I refer to what I have said in paras [32], [33] and [46] above as to the content of the obligation to give reasons. In any event, I think, the submission is based on a misreading of what the referee said in paragraph 93. He was admitting as a possibility that there may have been other factors involved. He said that, having already concluded that there was no overwhelming case of a causal link. However, he characterised the other factors as "nothing more than speculation". I cannot understand how a referee could be required to discuss, let alone that a party should have a legitimate expectation that the referee was required to discuss, speculative theories.
70 Whilst I accept that paragraph 93 could have been more clearly expressed, I do not find anything in it suggestive of error. In my judgment, it has not been shown that the referee's finding was perverse. No basis has been shown for rejecting his conclusion on this issue.
Onus of proof
71 In paragraph 106 of the report, the referee dealt with who it was that had the obligation to identify pre-existing damage. He accepted the submission for the Ciccarellis that if Cavasinni contended that the damages should be discounted to allow for pre-existing damage then it bore an evidentiary onus which it had not discharged. Cavasinni says that this demonstrates error.
72 I do not agree. What the referee said needs to be placed in context. The context includes that in substance the accepted evidence from Mr Ciccarelli (supported by other evidence) was that there had been no observed problems prior to some time early in February 2001. Mr Ciccarelli's evidence was that he attended the premises on a weekly basis; clearly enough, the tenant who reported the problem to him would have attended the premises (as the referee found he did) on a daily basis. The referee rejected other evidence that suggested that problems had manifested themselves before work began on the Cavasinni land.
73 In addition, there was the expert evidence of (in particular) Mr Smee, to which I have already referred, that the damage observed was consistent with the application of lateral loads. As I have already said, Mr Smee supported that opinion by reference to his observations of the physical attributes of the cracks in the Ciccarelli retaining wall (and, I add, his observations on other matters). Whilst neither those observations, nor Mr Smee's opinions based on them, could show that there had been no pre-existing damage, they were consistent with the conclusions, to which the referee came, that the damage in question was either caused or exacerbated by the transmission of lateral loads as a result of activities carried out on the Cavasinni land.
74 It was incumbent on the Ciccarellis to prove, on the balance of probabilities, that the damage of which they complained, and for the cost of repair of which they sought compensation, was caused by the activities carried on by Cavasinni on its land. The combination of the lay and expert evidence that they had called satisfied the referee that this was so. In those circumstances, if Cavasinni wished to argue that the damages otherwise payable should be discounted to allow for the pre-existing state of disrepair of unit 2, I think it was correct to say that the persuasive, if not the legal, onus had shifted to them. I do not read what the referee said in paragraph 106 of the report, in his acceptance of the Ciccarellis' submissions on this point, as demonstrating any erroneous approach in law. Once it was accepted that (as apparently the referee accepted) the evidence shows that prior to 2001, unit 2 had been constructed and operated within normal tolerances and had not required any damage rectification, the proposition accepted by the referee follows inexorably.
75 I do not regard Cavasinni's submissions on this point as demonstrating any error of principle in the report, let alone error sufficient to justify its rejection.
Conclusions on challenges to report
76 In my judgment, of the eight challenges (seven factual and one as to principle) advanced by Cavasinni, only one succeeds. That is the challenge to the referee's conclusion that drainage was required to the west of the Ciccarelli retaining wall, and his allowance of $19,855 for that work.
77 The total cost of the work found by the referee to be necessary was (before overheads, profit and GST) $58,705. From that, the amount of $19,855 must be deducted. That produces a cost of work of $38,850. To that there should be added 20% for overheads and profit (as the referee did). That gives an amount of $7,770 and a sub total of $46,620. To that there must be added 10% GST, or $4,662. That gives a total of $51,282.
78 I conclude that the report should be adopted except for paragraph 126, which I reject, and except for the quantification in paragraph 134, which will need to be adjusted to reflect what I have just said.
79 The plaintiffs should have judgment in the sum of $51,282. As the parties did not address me on interest, they should have leave to do so if desired.
Costs
80 The Ciccarellis sought: