Mont. Code Ann. § 46-4-206

Testimony before a coroner's jury must be given under oath. The testimony of the witnesses examined and proceedings before the coroner's jury must be recorded and transcribed by a competent stenographer appointed by the coroner. The record of the inquest and the verdict of the jury must be filed by the coroner in the office of the clerk of the district court of the county in which the inquest was held. The expenses of recording and transcribing must be paid by the county upon claims duly rendered and certified to by the coroner in the same manner as other claims against the county are paid.