The Crown Court (Advance Notice of Expert Evidence) Rules 1987
These Rules provide for mutual disclosure of expert evidence between the parties to criminal proceedings in the Crown Court. Rule 3 requires a party to disclose any expert evidence which he proposes to adduce as soon as practicable after committal or the ordering of a retrial. Rule 3(1)(b) enables a party to examine the basis of any findings or opinions proposed to be adduced by way of expert evidence by another party. Rule 4 provides for a party to withhold any matter where he has reasonable grounds for suspecting that its disclosure might lead to intimidation or the course of justice being interfered with. In such a case the party is required to give to the other party notice in writing, which must include the grounds on which disclosure is being withheld. By Rule 5 a party who fails to comply with rule 3 in respect of any evidence may not adduce that evidence without the leave of the court.