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 ?
It investigates the nature and conditions of public trust and aims to provide a framework that can be used to gauge the trustworthiness of policy related expert opinion.
Authority to source expert opinion, he said, must first be granted as the fees were often exorbitant and therefore engagement of experts was only allowed in cases with good prospects of success.
Through the Expert Opinion initiative, HCG is extending its expertise right into the patients' hand where the patient can connect with HCG through his or her mobile device or personal computer.
Expert Opinion Nodes: Expert opinion nodes were the starting nodes in the network.
"Work has begun in securing expert opinion from those experts in order to assist us with the ongoing criminal investigation."
Crowd Mobile has created Crowd Expert as a global platform for paid questions and answers that seamlessly connects those looking for an expert opinion with those that are best placed to provide them in near real time.
The exchange of expert opinions is probably the most time-consuming part of the judicial processing here.
The case was adjourned until Friday to await expert opinion.
The line where information generated by software crosses into the realm of expert opinion is drawn on a case-by-case basis, and in the Court's words "[t]here is no automatic or universal rule that computer-generated reports are inadmissible hearsay, or only admissible through expert evidence" (at para 25).
Figure 3 illustrates the distribution of health centers where the ophthalmologic events tended to malpractice claims by the expert opinion of the SHC.
SILVINIACO CONTI (Paul Nicholls) EXPERT OPINION 'He's impressed on all three starts this season, beat Long Run at Haydock, and I love the way he jumps and travels.
Serbia's Minister of Justice and Public Administration Nikola Selakovic will attend today the 94th session of the Venice Commission, that will give its expert opinion on the three judicial laws delivered by the line ministry.The Ministry of Justice Justice and Public Administration sent to the Venice Commission draft proposals amending the Law on judges, Law on courts and Law on public prosecution.Selakovic will during tomorrow's session of the Venice Commission speak about the basic amendments to these bills, after which the Commission experts will present their expertise.The Ministry of Justice and Public Administration will take into consideration all suggestions and recommendations from the Venice Commission report when drafting the final text of these laws.

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