Mo. Rev. Stat. § 58.390: Attachment, how served — fees to be paid, by whom.

Every such attachment may be directed to any constable or sheriff of the district, city or county in which the witness resides, and shall be executed in the same manner as a warrant in a criminal case, and the fees of the officer for issuing and serving the same shall be paid by the person against whom the same shall have been issued, unless he show reasonable cause for his omission to attend, in which case the costs shall be taxed as in cases of attachment of witnesses in criminal cases.