If he deems it necessary, the specified fire inspector shall take, or cause to be taken, the sworn testimony of all persons supposed to be cognizant of any facts or to have means of knowledge in relation to the matters as to which an examination is required by Section 11-9-1 to be made, and cause the testimony to be reduced to writing. If the fire inspector is of the opinion that there is evidence sufficient to charge a person with the crime of arson, the fire inspector shall cause that person to be arrested and charged with that offense. He shall furnish to the state‘s attorney the names of the witnesses and all information obtained by him, including a copy of all pertinent and material testimony taken in the case. The fire inspector shall report to the Director of Insurance, for the Department of Insurance, as that Director requires, his proceedings and the progress made in all prosecutions of arson and the result of all cases which are finally disposed of.