The total number of deaths reported to the Pierce County Medical Examiner's Office in 2007 was 1,643. This represents 29% of the 5,725 deaths that occurred in Pierce County in 2007. Each reported case received basic investigative review including review by a forensic pathologist. Jurisdiction was declined in 822 cases. Jurisdiction was assumed in the remaining 821 cases and further investigation was conducted. Postmortem examinations by forensic pathologists (autopsies and external examinations, including non-human remains) were conducted in 533 cases. The pathologist were able to certify the remaining cases following investigation and medical history review. The determination of manner of death is made by the Medical Examiner for death certification purposes based on the preponderance of available evidence.