Mapping the Expert Witness Workforce

The UK Expert Witness Workforce in 2026

In 2026, the Expert Witness Institute (EWI) embarked on an ambitious project to gain more insight into the size and demographics of the Expert Witness workforce. The results of this work will be used to help with advocacy with the government and judiciary, to develop relevant and robust policies, and to develop better and targeted services.

 

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Key insights

Infographic sharing the key highlights from the Workforce Mapping Research

 

Our key findings

  • It is estimated that there are approximately 31,000 people in the UK undertaking expert witness work. This consists of 7,500 people in the UK undertaking expert witness work regularly and a further 23,500 who undertake cases infrequently.
  • Specialist Medical Practitioners form the largest group with 40% of respondents. Construction and Building and Therapy professionals (including Occupational Therapy and Psychologists) are the next-largest groups.
  • Over 50% have worked as an Expert Witness for over 15 years.
  • 12% consists of "Professional Expert Witnesses" (those that only do Expert Witness work).
  • 30% of Experts complete 100 or more cases on average per year.
  • The average Expert Witness undertakes 60 cases per year.
  • The majority of Expert Witnesses (77%) charge between £100 and £400 per hour.
  • 41% do not hold any formal Expert Witness qualifications.
  • Only 49% have completed core training in Law for Experts, Report Writing, and Expert Discussions/Joint Statements
  • 11% have not undertaken any Expert Witness training in the key competencies required of an Expert Witness.
  • 62% undertake work as a Single Joint expert but only half of those have completed training in being a Single Joint expert.
  • 33% of the workforce are over 65 and have been working as an Expert Witness for 10 years or more.
  • Only 24% of the entire workforce is female, but there are signs that over time there will be greater representation with a far more balanced gender split in the 35-44 age group.
  • 86% of the workforce is from a White background
  • More work is required in the next survey to understand the needs of the 6% who identify as having a disability.
  • More work is needed to define and refine 'regular' and 'infrequent' Expert Witnesses in future surveys.