The phrase death certificate can refer either to a document issued by a medical practitioner certifying the deceased state of a person or, popularly, to a document issued by a person such as a registrar of vital statistics that declares the date, location and cause of a person's death as later entered in an official register of deaths.
Each governmental jurisdiction prescribes the form of the document for use in its preview and the procedures necessary to legally produce it. One purpose of the certificate is to review the cause of death to determine if foul-play occurred as it can rule out an accidental death or a murder going by the findings and ruling of the medical examiner. It may also be required in order to arrange a burial or cremation to provide prima facie evidence of the fact of death, which can be used to prove a person's will or to claim on a person's life insurance. Lastly, death certificates are used in public health to compile data on leading causes of death among other statistics (See: Descriptive statistics)
Before issuing a death certificate, the authorities usually require a certificate from a physician or coroner to validate the cause of death and the identity of the deceased. In cases where it is not completely clear that a person is dead (usually because their body is being sustained by life support), a neurologist is often called in to verify brain death and to fill out the appropriate documentation. The failure of a physician to immediately submit the required form to the government (to trigger issuance of the death certificate) is often both a crime and cause for loss of one's license to practice. This is because of past scandals in which dead people continued to receive public benefits or voted in elections. Death certificates may also be issued pursuant to a court order or an executive order in the case of individuals who have been declared dead in absentia. Missing persons and victims of mass disasters (such as the sinking of the RMS Lusitania) may be issued death certificates in one of these manners.