[15] The argument before the judge, and in this Court, did not always reflect the limited nature of the privilege claim. In particular, contrary to assumptions upon which some of the submissions were constructed, in conformity with Interchase Corporation Limited (In liq.) v Grosvenor Hill (Queensland) Pty Ltd (No. 1)[5], the insurer had not sought to shield the experts' notes and working papers from disclosure. The claim for privilege is restricted to those documents described by Derrington J: in summary, communications between solicitors and experts made for the sole purpose of use in the Interchase litigation. The insurer - one of the clients on whose behalf the solicitors were conducting the insured's defence of Interchase's claims - has not waived its privilege in those communications. The question, therefore, is whether, in respect of those limited communications, and consistently with the principles expounded in Attorney-General (NT) v Maurice[6] and Goldberg v Ng[7], the law imputes such a waiver by reason of some act or omission on the part of the insured such that fairness requires the privilege to cease.