Expert Witness

/ˈɛkspɜrt ˈwɪtnəs/

Definitions

  1. (n.) A person qualified by knowledge, skill, experience, training, or education to provide opinion evidence in a legal proceeding.
    The court appointed an expert witness to testify on forensic evidence.
  2. (n.) A witness who offers specialized knowledge beyond that of an ordinary person to assist the fact-finder in understanding evidence or determining a fact in issue.
    The expert witness explained the technical details of the contract dispute.

Forms

  • expert witnesses

Commentary

An expert witness must be qualified by the court before giving opinion evidence; unlike fact witnesses, they may express opinions and draw conclusions within their expertise.

This glossary is for general informational and educational purposes only. Definitions are jurisdiction-agnostic but reflect terminology and concepts primarily drawn from English and American legal traditions. Nothing herein constitutes legal advice or creates a lawyer-client relationship. Users should consult qualified counsel for advice on specific matters or jurisdictions.

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