[Unnatural deaths must be investigated better--risk of crimes being missed. Examination of the police and the health care system management of deaths in three counties].

: In 2008 only 55 % of all deaths not deemed to be natural in Sweden underwent a medicolegal autopsy. In the present study we describe and compare the characteristics of unnatural deaths in three counties through review of death certificates for unnatural deaths and, when applicable, corresponding police reports. The majority of unnatural deaths that were not reported to the police were among elderly decedents, with the deaths most often resulting from a fall-related fracture or head injury. One subgroup among these deaths that were not recognized as reportable by the involved physician, estimated by extrapolation to a total of approximately 300 annually, nationwide, was considered to be at elevated risk for a criminal death (homicide). The causes of death in this group were due to, for example, high energy or sharp force trauma, gunshot injury, asphyxia, and drug and/or alcohol intoxication. We conclude that additional training in the handling of unnatural deaths is indicated for Swedish physicians.