Expert Witness Declaration Template for England and Wales

An Expert Witness Declaration is a fundamental requirement when you need to provide expert testimony in legal proceedings within England and Wales. This document formally establishes your credentials as an expert witness and confirms your understanding of the strict legal obligations that govern expert evidence under the Civil Procedure Rules.

When do you need this document?

You must prepare an Expert Witness Declaration whenever you are instructed to provide expert evidence in civil or criminal proceedings. This includes personal injury cases where medical expertise is required, construction disputes involving technical engineering assessments, financial fraud cases requiring forensic accounting analysis, and family proceedings where child psychology expertise is needed. The declaration is also essential in commercial litigation involving industry-specific knowledge and regulatory compliance matters where specialist expertise guides the court's understanding of complex issues.

Key legal considerations

Your Expert Witness Declaration must clearly establish your qualifications, experience, and areas of expertise relevant to the specific case. The document requires a comprehensive statement of truth confirming the accuracy of all contents and your understanding of the expert's overriding duty to the court. You must declare any potential conflicts of interest, previous involvement with the parties, and financial arrangements that could affect your independence. The declaration should specify the scope of your expertise and confirm that your evidence falls within your area of professional competence. Additionally, you must acknowledge that your primary duty is to assist the court impartially, regardless of who instructs or pays you.

Legal requirements in England and Wales

Under CPR Part 35 and Practice Direction 35, your Expert Witness Declaration must comply with specific formatting and content requirements mandated by English courts. The declaration must confirm your understanding that expert evidence should be the independent product of your professional analysis and that you understand the court's power to direct meetings between experts. You must acknowledge the Criminal Justice Act 1967 requirements in criminal cases and confirm compliance with relevant Professional Standards Guidelines issued by your professional body. The Evidence Act 1968 framework governs the admissibility standards your declaration must meet. Your declaration must also confirm understanding of CPR Part 19 requirements in criminal proceedings and acknowledge that the court may give directions about expert evidence at any stage of proceedings.