Expert witnesses by state: rules and experts for every court.
Each state page covers that state’s expert admissibility standard, medical malpractice expert requirements, criminal expert funding and the courts our experts testify in.
Select a state
More states are being added. Our experts travel and testify nationwide; if your state is not listed yet, call or use the form below.
New York Expert Witness
Admissibility: Frye. Serving New York City, Buffalo, Yonkers and statewide.
View New York → NJNew Jersey Expert Witness
Admissibility: Daubert (state variant). Serving Newark, Jersey City, Paterson and statewide.
View New Jersey → PAPennsylvania Expert Witness
Admissibility: Frye. Serving Philadelphia, Pittsburgh, Allentown and statewide.
View Pennsylvania → MAMassachusetts Expert Witness
Admissibility: Daubert-Lanigan. Serving Boston, Worcester, Springfield and statewide.
View Massachusetts → FLFlorida Expert Witness
Admissibility: Daubert. Serving Jacksonville, Miami, Tampa and statewide.
View Florida → TXTexas Expert Witness
Admissibility: Daubert. Serving Houston, San Antonio, Dallas and statewide.
View Texas → MIMichigan Expert Witness
Admissibility: Daubert. Serving Detroit, Grand Rapids, Warren and statewide.
View Michigan → NCNorth Carolina Expert Witness
Admissibility: Daubert. Serving Charlotte, Raleigh, Greensboro and statewide.
View North Carolina → MDMaryland Expert Witness
Admissibility: Daubert. Serving Baltimore, Frederick, Gaithersburg and statewide.
View Maryland → GAGeorgia Expert Witness
Admissibility: Daubert. Serving Atlanta, Columbus, Augusta and statewide.
View Georgia → OHOhio Expert Witness
Admissibility: Daubert (Ohio variant). Serving Columbus, Cleveland, Cincinnati and statewide.
View Ohio → ILIllinois Expert Witness
Admissibility: Frye. Serving Chicago, Aurora, Naperville and statewide.
View Illinois → VAVirginia Expert Witness
Admissibility: Virginia reliability test. Serving Virginia Beach, Chesapeake, Norfolk and statewide.
View Virginia → AZArizona Expert Witness
Admissibility: Daubert. Serving Phoenix, Tucson, Mesa and statewide.
View Arizona → CACalifornia Expert Witness
Admissibility: Kelly / Sargon. Serving Los Angeles, San Diego, San Jose and statewide.
View California →Tell us what your case requires.
Call or write with the specialty, the issues in dispute and your deadline. We will find the right fit.
Langley, KY 41645