Mo. Rev. Stat. § 550.280: Certain fees deemed criminal costs.

All fees due witnesses before the grand jury, and all fees due jurors in any criminal case, and all fees accruing in any inquest case where the verdict of the jury is that the deceased came to death by other than unavoidable accident or natural causes, shall be deemed criminal costs, and shall be paid in like manner and shall be subject to all the offsets herein provided for.