Rule 123 Court’s power to restrict expert evidence
Subject to rule 120, no party may file or adduce expert evidence unless the court or a practice direction permits.
When a party applies for a direction under this rule he must—
identify the field in respect of which he wishes to rely upon expert evidence;
where practicable, identify the expert in that field upon whose evidence he wishes to rely;
provide any other material information about the expert; and
provide a draft letter of instruction to the expert.
Where a direction is given under this rule, the court shall specify the field or fields in respect of which the expert evidence is to be provided.
The court may specify the person who is to provide the evidence referred to in paragraph (3).
Where a direction is given under this rule for a party to call an expert or put in evidence an expert’s report, the court shall give directions for the service of the report on the parties and on such other persons as the court may direct.
The court may limit the amount of the expert’s fees and expenses that the party who wishes to rely upon the expert may recover from any other party.