The role of an expert witness, in litigation or arbitration proceedings, is to assist the court (or arbitration tribunal) to come to a proper determination of the matter in dispute.

To be eligible to become an expert witness you must:

  • have a minimum of ten years as a practicing Quantity Surveyor
  • hold AIQS Member or Fellow grade for a minimum of 12 months
  • hold Certified Quantity Surveyor (CQS) designation
  • be CPD compliant for the last 12 months according to the AIQS CPD Policy
  • have previous experience as an expert witness
  • have undertaken specific training as an expert witness (you can access expert witness training on the AIQS Academy).

If you wish to apply to become an expert witness, please complete the application form and email it to