Sweden, Finland, Norway, and Denmark

In 1946, a book titled Rättsmedicin (Forensic medicine) was published (Sjövall 1946) describing the development of an undetermined “y”; eggs hatch to larvae within 1-2 days, larvae grow for 10-12 days before they pupate, and the pupal stage lasts another 10-14 days. There are no instructions on collection or preservation of these larvae or any hints on how postmortem interval can be calculated, only a comment that they might be useful in determining time of death.