Commerce and legal-Expert Witness

Wooden gavel and books

Our expert witness services draw on a core team of highly regarded technical experts, all distinguished in their field. Frazer-Nash supports all advice and opinions with advanced simulation technology that can withstand the most rigorous examination. We have supported solicitors, multinational organisations and national legislative bodies for over two decades, providing advisory reports and detailed evidence in courts.

Accident investigation and dispute resolution

Our expert witnesses carry out investigations into a wide variety of accidents and engineering disputes, providing hard evidence for quick resolution. We also complete research projects where findings inform future design. Our professional engineers provide comprehensive support and expert witness services to clients in the areas of industry, transport and the environment.

Our skills and services


  • Machinery and equipment failure
  • Safety standards assessment
  • Guards, fail-safe design 
  • Noise and vibration
  • Explosions and blast


  • Heavy-goods vehicle roll-over
  • Fork lift trucks and mobile cranes
  • Railway accidents
  • Vehicle crash and failure
  • Maritime personnel injury
  • Shipping accidents


  • Pollutant dispersion
  • Waste management
  • Environmental risk management