USA EXPERT WITNESS (LIST)
In the United States, an expert witness is by definition a qualified professional authorized to provide independent, specialized opinions in legal and insurance-related disputes where technical, scientific, financial, or medical expertise is required.
Unlike fact witnesses, expert witnesses in the USA are permitted to offer opinions, interpretations, and conclusions based on their professional expertise.
The US legal system operates under common law, where expert testimony plays a decisive role in litigation, arbitration, insurance claims, and settlement negotiations.
Expert witnesses are governed by federal rules such as the Federal Rules of Evidence (Rule 702) and landmark standards such as the Daubert standard.
Expert witnesses assist judges, juries, insurers, and attorneys by translating complex technical facts into understandable conclusions.
They may act in pre-litigation insurance disputes, court proceedings, mediation, arbitration, or regulatory investigations.
Their responsibilities include damage assessment, causation analysis, liability determination, compliance evaluation, and financial loss quantification.
Expert witnesses also prepare expert reports, affidavits, depositions, and courtroom testimony.
The United States recognizes a wide range of expert witness categories depending on the dispute.
Expert witnesses must demonstrate recognized education, extensive professional experience, and subject-matter authority.
They must also show methodological reliability, independence, and the ability to withstand cross-examination.
For insurance policyholders, expert witnesses provide balance against insurer-appointed experts and help secure fair compensation.
Their intervention is particularly critical in high-value or technically complex claims.
Expert Witness in the United States (USA): Roles, Functions, and Legal Framework
Specificities of the American expert witness system
Role of expert witnesses in the American framework
Main functions of an expert witness
Types of expert witnesses in the USA
Fields commonly covered
Criteria to become an expert witness in the USA
Importance for insurance policyholders