Expert evidence refers to testimony or opinions provided by an individual who is considered an expert in a particular field. This type of evidence is often used in legal proceedings, where an expert witness may be called upon to provide their opinion on a matter within their area of specialization. The purpose of expert evidence is to help the trier of fact (jury or judge) understand complex issues that would otherwise be difficult for them to comprehend without the assistance of someone with specific knowledge and experience in the subject matter at hand. Expert witnesses are typically required to have a high level of skill, knowledge, training, or education in their respective fields, and they must provide evidence based on their expertise rather than personal beliefs or speculation.