expert witness

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expert witness

n. a person who is a specialist in a subject, often technical, who may present his/her expert opinion without having been a witness to any occurrence relating to the lawsuit or criminal case. It is an exception to the rule against giving an opinion in trial, provided that the expert is qualified by evidence of his/her expertise, training and special knowledge. If the expertise is challenged, the attorney for the party calling the "expert" must make a showing of the necessary background through questions in court, and the trial judge has discretion to qualify the witness or rule he/she is not an expert, or is an expert on limited subjects. Experts are usually paid handsomely for their services and may be asked by the opposition the amount they are receiving for their work on the case. In most jurisdictions, both sides must exchange the names and addresses of proposed experts to allow pre-trial depositions. (See: expert testimony)

expert witness

in the law of evidence, a witness who is allowed to give opinion evidence as opposed to evidence of his perception. This is the case only if the witness is indeed skilled in some appropriate discipline. An exception to the usual rule of practice whereby witnesses are heard one after the other and do not hear the evidence of the preceding witness is made in relation to competing experts. The term skilled witness is favoured in Scotland.
References in periodicals archive ?
17) Novel scientific expert evidence is evidence that has not received widespread peer review (18) and/or acceptance from the judicial or scientific communities.
Selected by more than 75 scientific experts in a variety of disciplines and the magazine's editors, the award recognizes the GIGAswitch/FDDI as one of the year's most technologically significant new products.
NOTE TO EDITORS: To arrange an interview with scientific experts on pesticides and food safety, including members of the NAS panel, contact Molly Natchipolsky or Elaine Auld at IFIC.
These animations often must be viewed and easily understood not just by scientific experts, but also by consumer audiences.
The MCT was chosen by a panel of scientific experts and magazine editors for one of the 1993 "R&D 100" Awards.
The Autism Gene Discovery Project will be conducted by scientific experts from the Autism Consortium and the Broad Institute of MIT and Harvard.
Selected by more than 75 scientific experts and the editors of R&D Magazine, Oatrim is the only food ingredient among the 100 products being honored this year.
The exhibit is a collection of unique photographs from Sebastian Copeland's upcoming book based on a recent Global Green-led expedition with scientific experts and researchers to remote Antarctica.
9 /PRNewswire/ -- Valence Technology's (NASDAQ-NMS: VLNC) state-of-the-art solid lithium polymer battery technology has been recognized as one of the year's most significant scientific developments by a panel of 75 scientific experts worldwide and the editors of R&D Magazine, during the 1993 R&D 100 Awards.
Winners are chosen by the editors and a panel of more than 75 respected scientific experts in a variety of disciplines.
The new center will further enhance TriQuint's creative resources and foster collaboration among engineers and scientific experts from both within the company and our customers throughout the Eastern Seaboard and our European staff.
The Harris MCT was chosen by a panel of scientific experts and the magazine's editors for one of the 1993 R&D 100 Awards.

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