It is the Coroner’s responsibility to ascertain the cause of death. The vast majority of deaths reported to the coroner are from natural causes – only a small proportion require further investigation. The Coroner will conduct a post-mortem to find out the cause of the death. The Coroner does not require permission to investigate a death within his/her jurisdiction, and cannot be prevented from doing so. In certain circumstances, the Coroner may investigate a death even when the person has been ill for some time. The Coroner has to investigate deaths from diseases which may have been caused by the deceased’s occupation, or deaths after recent operations, to ensure that public interest has been served.