What is the procedure used by a coroner to determine the cause of death at an inquest?

[2] To fulfill his or her duties, the coroner may summon a surgeon or physician to inspect the body or hold a post mortem examination or a chemist to make an analysis of the stomach or the tissues of the deceased and give a professional opinion as to the cause of the death. ( 27499.) When there is a question as to the cause of death, the coroner acts within his authority in ordering an inquest held, and in authorizing his autopsy surgeon to proceed in the usual manner. ( Huntly v. Zurich General A. & L. Ins. Co. (1929) 100 Cal.App. 201, 214, 280 P. 163.)