The liability grounds
25The appellant appealed on liability on the following grounds:
(1)His Honour erred in applying the civil standard of proof by requiring the Appellant to have adduced evidence of the precise cause of the de-lamination of kitchen panels supplied by the respondent in circumstances where the process of manufacturing the panels was peculiarly within the knowledge of the respondent.
(2)Having found that:
(a)There was clear evidence of a problem with the panels in that the thermo laminated coloured doors and panels had separated from the MDF board;
(b)The de-lamination extended to all panels in 8 kitchens in which the panels were installed;
(c)The de-lamination was not caused by proximity to excessive heat or moisture or the use of harsh cleaning products or similar practices due to the treatment of the kitchens by end users,
his Honour should have found that the respondent was negligent in supplying panels which were not reasonably fit for purpose.
(3)His Honour erred in holding that the length of time between the delivery of the panels and completion of their installation gave rise to a significant opportunity for there to have been mishandling or damage to the panels.
(4)There was no evidence upon which his Honour could have properly inferred that the panels had been packed on a pallet, delivered and stored over a period of many months such as to increase the prospect of mishandling and consequent damage resulting in de-lamination in all panels in all kitchens subject of this dispute.
(5)His Honour should have held that the respondent had failed to adduce any evidence to explain the cause of the de-lamination.
26The first and fifth grounds can be dealt with together. The appellant called in aid three well established principles relevant to proof of causation in support of these grounds:
(1)The doctrine of res ipsa loquitur, which has the effect that, in certain circumstances, negligence can be inferred from the occurrence itself.
(2)The inability to call evidence, whether lay or expert, to show exactly how something has happened is not fatal.
(3)Slight evidence may be enough to discharge the onus of proof where the facts are peculiarly within the knowledge of that party.
27The doctrine of res ipsa loquitur does not extend to a process as sophisticated as lamination of panels: Schellenberg v Tunnel Holdings Pty Limited [2000] HCA 18; 200 CLR 121 at 138-142. The second and third principles are interrelated: see the summary of the principles and relevant authorities in Bendix Mintex Pty Limited v Barnes (1997) 42 NSWLR 307 at 317 per Mason P.
28Nu-Door established that there were several possible causes of the delamination in the present case, including those which involved no negligence on its part, such as mishandling of the panels after they had been delivered to C & S Kitchens, inappropriate storage, or negligence in the course of installation. The other cause postulated: inappropriate care and use of the panels after their installation, can be put to one side as the primary judge was satisfied that it had been excluded to the relevant standard by the evidence of Mr Dumble and Ms Bonfield.
29Although the manufacturing process was purely within Nu-Door's knowledge and control, the storage, handling and installation of the panels after Nu-Door had delivered them to C & S Kitchens was a matter within the knowledge and control of C & S Kitchens. The appellant bore the onus of excluding other possible causes that could not be attributed to any negligence on the part of Nu-Door. The primary judge's finding that the appellant had not discharged the onus was correct and followed from his Honour's rejection of Mr Sarikaya's evidence as to storage, handling and installation.
30Given the absence of expert evidence, Mr Sarikaya's evidence was the only evidence that was capable of excluding as causes mishandling of the panels post-delivery, inappropriate storage, or negligence in the course of installation. Mr Condon SC, who appeared on behalf of the appellant, contended that there was no relevant challenge to Mr Sarikaya's evidence about C & S Kitchens' handling of panels and that, in those circumstances, it was an error for the primary judge not to accept it.
31I do not accept this submission. A cross-examiner may challenge a witness's evidence in a broad way by challenging the witness's credibility on the grounds of self-interest, lack of recollection, bias, or some other matter. A cross-examiner may also choose to challenge testimony by reference to its level of generality, or its inconsistency with incontrovertible, or objectively established facts. It is not necessary for a cross-examiner to challenge each line of evidence directly for a challenge to be effective: see generally Allied Pastoral Holdings Pty Limited v Commissioner of Taxation [1983] 1 NSWLR 1 per Hunt J. Nu-Door challenged Mr Sarikaya's credibility in several ways, including as to its timing (after the settlement of the proceedings against him) and its generality. Nu-Door also showed that Mr Sarikaya's evidence that the kitchens had been installed by October 2002, was incorrect. I consider that the appellant was sufficiently on notice of the submission, that was eventually made on behalf of Nu-Door, that Mr Sarikaya's evidence as to the handling of the panels ought not be accepted.
32The appellant relied on Kuhl v Zurich Financial Services Australia Limited [2011] HCA 11; 243 CLR 361 at [72]-[75] which sets out the obligations of a trial judge to foreshadow a challenge to a witness whom the judge proposes not to accept, where the opposing party has not done so. I do not consider that there was any such obligation on the primary judge in the present case when the challenge had, for the reasons given above, been sufficiently made by Mr Altan, counsel for Nu-Door.
33In any event, Mr Sarikaya's evidence was confined to his usual practice. His evidence did not contain any detail about what actually occurred in the period between the delivery of the panels and their installation. Indeed, his evidence as to the completion of the units was incorrect by several months and at odds with the description of his usual practice in his affidavit. Apart from the evidence of Mr Sarikaya, which the primary judge was, for the reasons given above, entitled to find was insufficient to discharge the onus the appellant bore, the appellant had not adduced any evidence that was capable of excluding storage, mishandling or negligent installation as a cause of the delamination. Nu-Door bore no onus to exclude manufacture as a cause. In these circumstances, there was no need for Nu-Door to adduce evidence to explain the cause of the delamination. Neither the first nor the fifth grounds has been made out.
34The second ground contains within it two false premises. First, the primary judge did not find that the delamination extended to all panels in all kitchens and accordingly must be taken to have rejected Mr Barrak's evidence to that effect. Although the appellant's expert, Mr Nisbett, said that panels in eight kitchens were delaminated, there were more than eight kitchens that were constructed and therefore Mr Nisbett's evidence, even if taken at its highest, cannot establish universal damage. Secondly, the use of the panels post-installation was, as set out above, only one of a number of postulated causes. Although the primary judge found that post-installation use and care had been excluded as causes on the balance of probabilities, his Honour was not satisfied that the damage to the panels had not been caused by unsuitable storage, negligent handling or negligent installation.
35The length of time between the delivery of the panels and their installation is relevant to the third ground. The evidence established that the first batch of panels was delivered on 25 September 2002 and the last batch was delivered on 19 March 2003. The kitchens were constructed in the period from September 2002 and July 2003. Accordingly, the last panel was installed in a kitchen in the Development ten months after the first delivery and four months after the second. In these circumstances I can discern no error in the finding made by the primary judge that the length of time between delivery of the panels and completion of their installation gave rise to a significant opportunity for there to have been mishandling and consequential damage to the panels, having regard to their susceptibility to damage if not handled properly.
36The fourth ground has not been made out for the same reasons as set out with respect to the third ground. Further, it contains the same false premise that all panels in all kitchens suffered from delamination when this was not accepted by the primary judge.
37The appellant has not made out any of the five grounds pertaining to liability.