What is one of the main purposes of having expert witnesses in trials?

One of the main purposes of having expert witnesses in trials is to offer opinions based on empirical data. Expert witnesses possess specialized knowledge, skills, or experience that is relevant to the case at hand. They provide insights that help the jury or judge understand complex issues that are outside the common knowledge of laypersons. For example, an expert in forensic science may explain the significance of evidence found at a crime scene, while a financial expert may elucidate the economic implications of a business practice in a fraud case. Their opinions are grounded in scientific methods, research, or professional standards, making them credible and valuable for aiding the court’s understanding of technical aspects related to the case. This contribution is crucial for ensuring that the decisions made are informed and just.