What is an expert witness?

An expert witness is an individual who can provide relevant and specialized knowledge in a legal proceeding. An expert witness is called upon to testify in court on matters that require specialized knowledge or experience. For example, in a civil or criminal case, an expert witness can provide an opinion on a certain piece of evidence or provide insight into a particular area of the law. In Michigan, an expert witness is a person who has knowledge beyond that of a lay person, which qualifies them to provide testimonies or opinions in court. Expert witnesses are expected to have specific knowledge that is pertinent to the case and is necessary to assist the court in making a decision. Expert witnesses typically have extensive experience in the subject matter of the case, and they may also have training in its technical aspects. An expert witness can be used to educate a jury about a particular subject in a case. In a civil or criminal trial, an expert witness can provide expert testimony that can help the jurors understand the issues of the case. Expert witnesses can also help the judge to make a more informed decision by providing an objective opinion. In Michigan, an expert witness may be asked to sign a declaration or affidavit verifying their qualifications and expertise in a particular field. Depending on the nature of the case, an expert witness may also be asked to provide written reports or to testify before the court.

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