What is the role of an expert witness in a federal criminal trial?

In a federal criminal trial, an expert witness is someone with specialized knowledge regarding an issue related to the trial. The main role of the expert witness is to provide information to the court that would not be widely known by jurors. This information could assist in determining the facts of the case. The expert witness may be used to explain complicated medical or scientific evidence. In some cases, the expert could also be used to discuss the behavior of the defendant and explain if it was in line with the laws of the state. In Utah, the Federal Rules of Evidence allow the use of a qualified expert witness in a criminal case. The qualifications of the witness are based on the specialized knowledge they possess and their experience in the field to which they are testifying. During a federal trial, the expert witness will offer testimony regarding the facts of the case and their interpretation of the evidence. The judge may also allow questions from the prosecuting or defense attorneys to the expert witness. Experts may also review documents and reports submitted during the trial to strengthen the arguments of the defendant or prosecution, or to rebut evidence presented in court. In the end, an expert’s testimony can be key in helping a jury reach a verdict.

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What is the role of an expert witness in a federal criminal trial?

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