The chief officer of the division of state fire marshal in the department of public safety shall be known as the state fire marshal. The fire marshal’s duties shall be as follows:

 The chief of the fire department or the chief’s designee of every city or township in which a fire department is established or the chief of the fire department or the chief’s designee responding to every township fire where there is a contract for fire protection in effect shall investigate into the cause, origin and circumstances of every fire occurring in the city or township by which property has been destroyed or damaged or which results in bodily injury to a person, and determine whether the fire was the result of natural causes, negligence or design. The state fire marshal may assist in the investigation or may direct the investigation if the fire marshal finds it necessary.

 When death, serious bodily injury, or property damage in excess of two hundred thousand dollars has occurred as a result of a fire, or if arson is suspected, the fire official required by section 100.2 to make fire investigations, shall notify the state fire marshal’s division immediately. For all other fires causing an estimated damage of fifty dollars or more or emergency responses by the fire service, the fire official required by section 100.2 to investigate shall file a report with the fire marshal’s division within ten days following the end of the month. The report shall indicate all fire incidents occurring which have an estimated damage of fifty dollars or more and state for each incident the name of the owners and occupants of the property at the time of the fire, the value of the property, the estimated total loss to the property, the origin of the fire as determined by investigation, and other facts, statistics, and circumstances concerning the fire incident. The report on each emergency response shall include the nature of the incident and other facts, statistics and circumstances concerning the emergency response.

 The failure or refusal of a fire official to make an investigation or report required by sections 100.2 and 100.3 is a simple misdemeanor.

 The fire marshal or the fire marshal’s designated subordinate shall, when in the fire marshal’s or subordinate’s opinion further investigation is necessary, take or cause to be taken the testimony under oath of all persons supposed to have knowledge of any facts, or to have means of knowledge in relation to the matter in which an examination is herein required to be made, and shall cause the same to be reduced to writing.

 The fire marshal and the fire marshal’s designated subordinates shall each have power in any county in the state to administer an oath and compel the attendance of witnesses before them, or either of them, to testify in relation to any matter which is by the provisions of this chapter a subject of inquiry and investigation, and may require the production of any books, papers, or documents necessary for such investigation.

 Any witness who refuses to be sworn, except as otherwise provided by law, or who disobeys any lawful order of said fire marshal, or the fire marshal’s designated subordinates, or who fails to produce any books, papers, or documents touching any matter under examination, shall be guilty of a simple misdemeanor.

 If the fire marshal shall be of the opinion that there is evidence sufficient to charge any person with the crime of arson, or with attempt to commit the crime of arson, or of conspiracy to defraud, or criminal conduct in connection with such fire, the fire marshal shall cause such person to be arrested and charged with the offense, or either of them, and shall furnish to the proper county attorney all such evidence, together with the names of witnesses and all of the information obtained, including a copy of all matter and testimony taken in the case.

 The state fire marshal, and the fire marshal’s designated subordinates, in the performance of their duties, shall have authority to enter any building or premises and to examine the same and the contents thereof.

 The county attorney shall represent the state and the fire marshal, but not to the exclusion of any other attorney who may be engaged in said cause.

 Investigation by or under the direction of the state fire marshal or the fire marshal’s designated subordinates may in their discretion be private. They may exclude from the place where such investigation is held all persons other than those required to be present, and witnesses may be kept separate from each other and not allowed to communicate with each other until they have been examined.

 The state fire marshal shall file with the governor annually, at the time provided by law, a detailed report of the fire marshal’s official acts and of the affairs of the fire marshal’s office. The report shall be published and distributed in the same manner as the reports of other state officers.

 Fire officials acting under the authority of chapter 10A, subchapter V, part 2, may issue citations in accordance with chapter 805, for violations of chapter 10A, subchapter V, part 2, or a violation of a local fire safety code.

 If consent to inspect property damaged or destroyed by fire to determine the cause, origin and circumstances of the fire or to inspect property subject to rules adopted under section 10A.523 has been refused to the official authorized to make the inspection, the state fire marshal, a state arson investigator or official authorized to make such an inspection may apply to the district court for a special inspection warrant for authority to conduct the inspection.

 Each inspection warrant issued under this chapter shall: