Bar-Mordecai v Hillston

[2005] HCATrans 082

IN THE HIGH COURT OF AUSTRALIA

Office of the Registry
Sydney No S145 of 2004

B e t w e e n -
MICHAEL BAR-MORDECAI
Applicant
and
ALLAN HILLSTON
Respondent
Application for special leave to appeal
Publication of reasons and pronouncement of orders

McHUGH J
HEYDON J

TRANSCRIPT OF PROCEEDINGS

AT CANBERRA ON THURSDAY, 3 MARCH 2005, AT 9.41 AM

McHUGH J: On 28 February 2003, Bryson J made orders for the restoration of benefits worth over $3 million received by the applicant from a patient of his, now deceased, to her estate. This is an application for special leave to appeal from orders of the New South Wales Court of Appeal in part dismissing the applicant's appeal from the orders of Bryson J.

If special leave were granted, the appeal would require analysis of financial transactions and of other relations between the applicant and his patient going back nearly 20 years. Two courts have already conducted this analysis. There is no reason to think that the Court of Appeal's conclusions are wrong or that the applicant's allegations of a denial of natural justice and other procedural errors have any merit. There is no point in the application that would justify this Court granting special leave.

The application for special leave is dismissed with costs.

Pursuant to rule 41.11.1 we direct the Registrar to draw up, sign and seal an order that the application is dismissed with costs.

AT 9.41 AM THE MATTER WAS CONCLUDED

CaseChat Overview and Summary

The High Court of Australia considered an appeal concerning the enforceability of a settlement agreement reached between the parties, Mr. Bar-Mordecai and Mr. Hillston, in earlier proceedings. The dispute centred on whether the settlement agreement, which was intended to resolve a complex commercial dispute, was valid and binding, or whether it had been vitiated by a fundamental mistake.

The primary legal issue before the High Court was whether the parties had entered into the settlement agreement under a common mistake as to a fundamental aspect of the contract, thereby rendering it void. Specifically, the court had to determine if the mistake related to the existence of a debt that was the subject of the underlying dispute, and if so, whether that mistake was so fundamental as to vitiate the agreement.

McHugh and Heydon JJ, in their joint judgment, held that for a contract to be voidable due to common mistake, the mistake must be about the existence of the very subject matter of the contract. They found that the parties' mistake, if any, was not about the existence of the debt itself, but rather about the legal enforceability of that debt. This distinction was crucial, as a mistake concerning the legal rights and obligations arising from a contract, rather than the existence of the subject matter, does not typically render a contract void. The court applied the principles established in *Bell v Lever Bros Ltd* and *Great Peace Shipping Ltd v Tsavliris Salvage (International) Ltd*, emphasizing that the mistake must be fundamental to the identity of the subject matter.

The High Court allowed the appeal, finding that the settlement agreement was not voidable due to common mistake. Consequently, the court ordered that the settlement agreement be upheld and enforced.

CaseChat Overview and Summary

Orders of the court

Background to the litigation

Evidence Before The Court

Reasons for decision

Legal Principle Established