Onley v Catlin Syndicate Ltd as the Underwriting Member of Lloyd's Syndicate 2003

This matter concerned an application for special leave to appeal to the High Court of Australia, brought by Catlin Syndicate Ltd as the underwriting member of Lloyd's Syndicate 2003, against a decision of the Full Court of the Federal Court of Australia. The dispute centred on the scope of an insurer's duty of utmost good faith in the context of avoiding an insurance contract for alleged pre-contractual non-disclosure. Specifically, the applicant argued that the insurer's attempt to avoid the policy was inconsistent with this duty, particularly where a third-party claim alleged criminal conduct, the policy contained a clause for advancing defence costs until admission, judgment, or adjudication (subject to clawback), and the allegations of non-disclosure mirrored those in the third-party claim.

The legal issues before the High Court involved determining who should bear the burden of a "wait and see" approach when an insurer seeks to avoid a policy based on allegations that are also the subject of criminal proceedings against the insured. The applicant contended that requiring the insured to challenge the avoidance after the conclusion of criminal proceedings would result in the permanent loss of the benefit of the defence cost advancement clause, thereby undermining their legitimate interests and the privilege against self-incrimination. The court was also asked to consider whether the insurer's right to avoid a contract for non-disclosure was a power that could be unilaterally exercised, or if it required a court determination of the underlying facts, and how the implied term of utmost good faith, as mandated by the *Insurance Contracts Act 1984* (Cth), informed the construction of the insurance contract and the insurer's conduct.

The applicant argued that the Full Court had failed to adequately consider the implications of the duty of utmost good faith on the construction of the contract and had applied a test for the insurer's grounds for avoidance that did not sufficiently account for the alignment between the alleged wrongful conduct and the third-party claim, nor the practical consequences for the insured. The applicant submitted that the "wait and see" mechanism within the defence cost advancement clause, coupled with the duty of utmost good faith, meant the insurer ought not to have taken the first step to avoid the policy at that stage, as the time for proving non-disclosure had not yet arrived.

The High Court dismissed the application for special leave to appeal, finding that the decision of the Full Court of the Federal Court of Australia was not attended by sufficient doubt to warrant granting leave.