Re S (a child) (expert evidence) [2008] All ER (D) 51 (Mar)
In instructing experts, nothing relevant should be excluded, but material that is unnecessary because it is irrelevant must be rigorously excluded.
Experts have to be spared files of documents which are peripheral to their essential task. It is important that local authorities abstain from introducing into proceedings and sending to an expert material that would be inevitably perceived by the person being assessed as unfair in the sense that it was prejudicial.