Abigroup Contractors Pty Ltd v Sydney Catchment Authority

Abigroup Contractors Pty Ltd (the appellant) appealed to the Supreme Court of New South Wales against a decision of a judge who had adopted a referee's report concerning a dispute with Sydney Catchment Authority (the respondent). The dispute arose from a contract for civil works, where the appellant alleged it had suffered loss due to misleading information provided by the respondent regarding rock levels. The referee had made findings on several issues, including causation under the *Trade Practices Act 1974* (Cth) and the appellant's reliance on the respondent's representations.

The primary legal issues before the Court of Appeal were whether the trial judge erred in adopting the referee's report, particularly concerning the assessment of causation and reliance, and whether the trial judge had failed to deal with all issues raised by the parties, specifically regarding estoppel. The Court also considered the nature of an appeal from a judge's decision to adopt, vary, or reject a referee's report under Supreme Court Rules Pt 72 r 13, and whether such an appeal was limited to reviewing the judge's exercise of discretion.

The Court of Appeal found that the trial judge had erred in exercising his discretion by adopting certain parts of the referee's report. It reasoned that the referee's findings on causation and reliance, which were central to the appellant's claim, were flawed. The Court noted that while the referee accepted the appellant's expert evidence on the location of a pipe and embankment, this did not automatically lead to the conclusion that the trial judge's adoption of the report was correct. Furthermore, the trial judge had failed to address the issue of estoppel, which had been raised by the referee's findings and was agreed by both parties to be an error requiring remittal. The Court applied the common law conception of causation, which involves a practical or common-sense assessment, and confirmed that reliance is an aspect of causation.

Consequently, the Court of Appeal allowed the appeal, set aside the trial judge's orders of 23 July 2003, and ordered that the referee's report be rejected. The matter was remitted to the trial judge for a rehearing, with the respondent ordered to pay the appellant's costs of the appeal, and the costs of the initial hearing to abide the outcome of the rehearing.