The mission of the Medical Examiner is to investigate whenever a person's death is unexpected and the cause of death is not immediately known. The Medical Examiner also investigates deaths that are the result of violence or injury and deaths that occur in legal custody. Mercer County has a contract with the County of Middlesex, New Jersey, for the service of medical examiner. If you need an autopsy report, please email medical.examiner@co.middlesex.nj.us.