9 In Peet v Mid-Kent Healthcare NHS Trust [2001] EWCA Civ 1703; [2002] 3 All ER 688, the Court of Appeal of England and Wales considered whether it was permissible for one party to have a conference with a single expert appointed under rules not relevantly different from the applicable provisions of the UCPR, in the absence and without the prior written consent of the other party. The rules provide a mechanism by which either party can seek clarification of a single expert's report: (UK) Civil Procedure Rules, r 35.6, is equivalent to our UCPR, r 31.41, which provides for written questions by one party to the expert by way of clarification of the report. CPR r 35.8, which does not have a precise equivalent in our rules, provides for a copy of instructions given by one instructing party to the expert to be sent to the other instructing party.
10 The court held that such a conference was not permissible, and would be inconsistent with the whole concept of the single expert framework provided by the rules. That framework was designed to ensure an open process, so that both parties knew what information had been placed before the single expert, and it would be wholly inconsistent with that structure to allow one party to conduct a conference where the evidence of the expert was in effect tested in the course of discussions.
11 As Simon Brown LJ said (at [32]), in answer to the question "When, if at all, should one party, without the consent of the other party, be permitted to have sole access to a single joint expert":
In common with Lord Woolf CJ I believe that the answer to this question must be an unequivocal, Never. Not merely is there nothing in CPR Pt 35, the practice direction supplementing Pt 35, and the relevant Queen's Bench guide suggesting that such access should be permitted, when the implications of the CPR are all the other way: See particularly CPR 35.6 and 35.8.
12 In my view the considerations referred to by Woolf LCJ and Simon Brown LJ in Peet's case are equally applicable to our rules, and the position under our rules, as under (UK) CPR, is that neither party should have a conference with a single expert or otherwise communicate with a single expert for the purposes of evaluating or testing his opinion in the absence of the other party, without the other party's prior written consent.
13 The approaches made on behalf of the plaintiffs to Mr Hepworth ought not have been made. The appropriate course was for written questions to be asked of the expert by way of clarification under r 31.41, or for directions to be sought from the court. And if the expert requires further information, r 31.39 provides for a party's single expert to seek directions from the court.
14 On the other hand, in Peet the Court of Appeal accepted (at [21]) that it was permissible for a single expert to interview one of the parties for the purposes of preparation of the report.
Unfortunately, because of the initial delays which occurred in the defendant admitting liability, the claimant's parents feel traumatised by their experience. There is no doubt that they were already highly distressed at the fact that the claimant was extremely disabled as a result of what occurred during his birth. In those circumstances litigation which is prolonged adds to that distress. This court fully understands and sympathises with their position. However, litigation of this sort cannot be conducted in a particular way because of distress of this nature. One of the experts whose expertise is nursing has interviewed the parents of the claimant for the purposes of the preparation of her report. There can be no objection to that. A single expert is perfectly entitled to interview the parents for the purposes of preparing a satisfactory report. There was no suggestion, as I understand it, for the defendant to be represented when instructions of that sort were being taken by the expert, and I would not expect the defendant to raise any objection to what happened in this case. That is one thing; but the idea of having an experts' conference including lawyers without there being a representative of the defendant present, as was suggested by the claimant's solicitors, in my judgment is inconsistent with the whole concept of the single expert. The framework to which I have made reference is designed to ensure an open process so that both sides know exactly what information is placed before the single expert. It would be totally inconsistent with the whole of that structure to allow one party to conduct a conference where the evidence of the experts is in effect tested in the course of discussions which take place with that expert. I emphasise that what I have just said does not prevent one expert from communicating with another expert in order to obtain any information which that expert requires to include in his or her report.