One point is, when you have experts in the field, it has to be dealt with in a very delicate way because the specific expertise and opinions have to be left at the door. Someone’s being an expert in a given area may mean that their natural reaction to certain evidence is to reject it because they know better.
The idea of the expertise is to establish common language and make it possible to communicate with the witnesses or with the appellants and make judgments on fact, that recognizes the exigencies of that particular field of endeavour. That can cause an administrative issue.
I mentioned training in my short piece, as well. Many of the people—even lawyers, in fact—but many others who come to tribunals in a decision-making role really are not accustomed to that kind of role. Training in how to manage the process can be very important. That's another administrative aspect of it.