RICS launches global consultation on updated expert witness standard

In its first major update since 2014, the standard represents several years of collaborative development with technical experts and reflects RICS' commitment to protecting public interest through standards and clarity in regulation. The updated standard is designed to be globally relevant and applicable to members providing expert evidence in civil proceedings before tribunals worldwide.

The updated standard reinforces the fundamental principle that defines expert witness practice: the primary duty of expert witnesses is to the tribunal, not the client. This means all reports and evidence must be independent, unbiased, and within the surveyor’s true expertise.

Key updates

• Global application

  The 5th edition applies worldwide, while recognising local legal differences. It aims to work within various legal systems while maintaining core professional principles.

• Enhanced professional protection

  The standard provides clear fee guidance on conditional and deferred fees, protecting professional independence. It also includes risk mitigation for high-volume cases, template usage, and professional responsibilities. There are clearer requirements for identifying and disclosing conflicts of interest, along with an explanation of legal consequences for non-compliance.

• Modern practice integration

  The update covers provisions for AI use, digital evidence, and new legal procedures, emphasising the quality and relevance of expert evidence. 
   

RICS welcomes member and stakeholder feedback to ensure the standard is:

• practical: achievable in real-world expert witness practice

• relevant: addresses current and emerging challenges

• clear: easy to understand and implement

• global: applicable across different jurisdictions and legal systems.
   

Legislative and regulatory context

RICS members acting as expert witnesses in housing disrepair claims should note evolving legislation like Awaab’s Law (effective October 2025) and the Housing Health and Safety Rating System (HHSRS). This ensures their reports meet current legal standards to protect claims and tenant welfare.

This consultation builds on RICS' April 2025 Practice Alert, which reminds members of their obligations in expert witness work, especially in housing disrepair cases. The updated standard offers a long-term framework to support professional excellence in all expert witness practice and protects the integrity of the wider profession.

To view and comment on the draft standard, please click here.