Ferguson v The Queen & Anor

The applicants, Ferguson and the second respondent, sought leave to appeal against a judgment of the Full Court of the Supreme Court of Western Australia. The dispute concerned the interpretation of a settlement agreement and its effect on the applicants' entitlement to a share of the proceeds from the sale of certain real property. The applicants contended that the settlement agreement did not extinguish their equitable interest in the property, while the respondents argued that it did.

The central legal issue before the High Court was whether the settlement agreement, properly construed, operated to release or extinguish the applicants' equitable proprietary interest in the subject land. This required the Court to consider the principles of contractual interpretation, particularly in the context of settlement agreements intended to resolve disputes and provide finality. The Court also had to determine the nature of the applicants' claimed interest and whether it survived the execution of the settlement.

In their joint judgment, Hayne and Bell JJ held that the settlement agreement, by its plain terms, was intended to achieve a final resolution of all claims between the parties, including any proprietary claims to the land. Their Honours reasoned that the language used in the agreement, particularly the release clause, was comprehensive and unambiguous in its effect. The Court applied the principle that clear and unequivocal language is required to extinguish a proprietary right, and found that such language was present in the settlement agreement. Consequently, the applicants' equitable interest in the property was extinguished by the agreement.

The High Court dismissed the application for leave to appeal.