A medical examiner is a licensed physician who investigates deaths, particularly those that are sudden, unexplained, or violent. They perform autopsies to determine the cause of death and may also collect evidence for legal cases. Their work is crucial in understanding how and why a person died, which can help in criminal investigations or public health matters. In addition to conducting autopsies, medical examiners often collaborate with law enforcement and other professionals. They provide expert testimony in court and may also be involved in educating the public about health and safety issues. Their role is essential in the field of forensic science.