Expert Witness In The Justice System

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On TV today the use of the expert witness in many crime dramas have given us a slight glimpse of what an expert witness does in the justice system. Expert Witnesses give their opinions to help the court establish a fact for a particular issue or help the court understand the evidence presented. An Expert Witness performs functions including collecting, testing, and evaluating evidence. Then form opinions based on the findings and present that opinions to the court.
By comparing the area in which the witness has expertise with the type of evidence being presented is how expert witnesses can be determined. There are 3 cases which have shaped the review of criteria needed for expert witness testimony, “commonly known as the “Daubert Trilogy.”

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