Aikens J. said,
19. Section 3 of the Civil Evidence Act 1972 states that the opinion evidence of a witness called in any civil proceedings on any relevant matter on which the witness is qualified to give expert evidence, shall be admissible in evidence.
The admission of expert evidence is, of course, subject to the rules of court.
CPR Part 35.1 provides that “expert evidence shall be restricted to that which is reasonably required to resolve the proceedings”.
It is well established that in order to fulfil the requirement of CPR Part 35.1 , a court must be satisfied that the expert evidence is properly admissible and will genuinely assist the trial judge in determining the matters which are in issue.
Edited for ease of reading.