There are laws on the issuing of a Certificate of cause of death. Under Singapore law, all deaths due to unnatural, violent, accidental, sudden and unknown causes must be reported to the coroner for a post-mortem after which the pathologist will sign a Certificate of cause of death. Under Singapore law, only pathologists are allowed to certify unnatural causes of death. Sudden deaths of all children are classified as unnatural deaths. If the deceased has a history of heart problems and the deceased has consistent medical records with a doctor to prove, then that doctor can be called to certify the cause of death.