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Legal Procedure

What is Expert Witness?

A person with specialized knowledge, training, or experience who is allowed to offer opinion testimony to help the jury understand technical or scientific issues.

Understanding Expert Witness

Experts are used in personal injury cases to explain injuries, causation, damages, and standards of care. Common experts include medical professionals, accident reconstructionists, economists, and vocational specialists. Their opinions must be based on reliable methodology.

Examples

  • 1Orthopedic surgeon explaining spinal injury
  • 2Accident reconstructionist determining fault
  • 3Economist calculating lost earning capacity
Last updated: January 24, 2026
Reviewed by: Quilia Legal Content Team

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