Upon the occurrence of any serious accident upon any railroad within this state, which shall result in personal injury, or loss of life, the corporation operating the road upon which the accident occurred shall give immediate notice thereof to the department whose duty it shall be, if they deem it necessary, to investigate the same, and promptly report to the governor the extent of the personal injuries, or loss of life, and whether the same was the result of mismanagement or neglect of the corporation on whose line the injury or loss of life occurred; but such report shall not be evidence or referred to in any case in any court.
Iowa Code § 327C.37