CourtGoing it alone
The choice between the appointment of a single joint expert (SJE) and experts appointed by each party is not necessarily a function of the size or nature of the case.

Lord Woolf commented in the final report on Access to Justice that “… single experts should be used wherever the case (or the issue) is
concerned with a substantially established area of knowledge and where it is not necessary for the court directly to sample a range of opinions. The expert’s duty to the court will require him to set out in his report his view of the range of possible options…”