In Japan, with the progress of aging society, home care will be promoted due to alteration of social security in near future. In these circumstances, increase of "deaths at home" is expected. Thus as "death at home" increase, it is suspected that physicians will have to investigate and diagnose in the case of "death at home" more frequently than the present time. In this review, on the basis of the laws and regulations, we describe the issue of death certificate or postmortem examination of "death at home", and the roles of "family doctors" for home care
