A death certificate is either a legal document issued by a medical practitioner which states when a person died, or a document issued by a government civil registration office, that declares the date, location and cause of a person's death, as entered in an official register of deaths. An official death certificate is usually required to be provided when applying for probate or administration of a deceased estate. They are also sought for genealogical research. The government registration office would usually be required to provide details of deaths, without production of a death certificate, to enable government agencies to update their records, such as electoral registers, government benefits paid, passport records, transfer the inheritance, etc. Source: Wikipedia (en)