How to construe an insurance policy

From: Muriniti; Newell v Lawcover Insurance Pty Ltd (No 2) [2018] NSWCA 311 beginning at [39]

Legal principles

The principles governing the construction of insurance policies are well established and were not in dispute. In McCann v Switzerland Insurance Australia Ltd (2000) 203 CLR 579; [2000] HCA 65, Gleeson CJ stated, at [22]:

“A policy of insurance, even one required by statute, is a commercial contract and should be given a businesslike interpretation. Interpreting a commercial document requires attention to the language used by the parties, the commercial circumstances which the document addresses, and the objects which it is intended to secure.” (footnotes omitted)

This statement was cited with approval by the High Court in Wilkie v Gordian Runoff (2005) 221 CLR 522; [2005] HCA 17 at [15], the Court adding, at [16]:

“In construing the policy, as with other instruments, preference is given to a construction supplying a congruent operation to the various components of the whole.” (footnote omitted)

In Zhang v ROC Services (NSW) Pty Ltd; National Transport Insurance by its manager NTI Ltd v Zhang (2016) 93 NSWLR 561; [2016] NSWCA 370 Leeming JA observed, at [86]:

“Where there is more than one available legal meaning, a court looks at the text, context and purpose, with a view to determining which potential meaning best accords with those considerations. Sometimes, text, context and purpose all point in the same direction, and all support the same conclusion as to the legal meaning of the contractual provision; that was the case in Victoria v Tatts Group Ltd (2016) 328 ALR 564; [2016] HCA 5 at [51] and [75]. Sometimes, as here, text, context and purpose point in different directions. But it remains necessary to assess the potentially available legal meanings against those matters.”

Leeming JA found the observations of Mance LJ in Gan Insurance Co v Tai Ping Insurance Co Ltd (No 2) [2001] EWCA Civ 1047; [2001] 2 All ER (Comm) 299 of assistance where there is a constructional choice as to the proper meaning of a contract or a term of a contract. In Gan Insurance Co v Tai Ping Insurance Co Ltd (No 2), the concern was with a clause which had at least two possible meanings. Mance LJ stated, at [16]:

“… In these circumstances, it is especially important to undertake the exercise on which the judge declined to embark, that is to consider the implications of each interpretation. In my opinion, a court when construing any document should always have an eye to the consequences of a particular construction, even if they often only serve as a check on an obvious meaning or a restraint upon adoption of a conceivable but unbusinesslike meaning.”

This passage was unanimously approved by the United Kingdom Supreme Court in Rainy Sky SA v Kookmin Bank [2011] 1 WLR 2900; [2011] UKSC 50; at [26]. See also the observations to the same effect in Australian Broadcasting Commission v Australasian Performing Right Association Ltd (1973) 129 CLR 99; [1973] HCA 36 per Gibbs J at 109, upon which the primary judge relied:

“It is trite law that the primary duty of a court in construing a written contract is to endeavour to discover the intention of the parties from the words of the instrument in which the contract is embodied. Of course the whole of the instrument has to be considered, since the meaning of any one part of it may be revealed by other parts, and the words of every clause must if possible be construed so as to render them all harmonious one with another.”