The service of any notice required by sections 492.080 to 492.400 may be by any sheriff, marshal, constable, or by any competent witness, who shall make affidavit to the service.
§ 492.190, RSMo
The service of any notice required by sections 492.080 to 492.400 may be by any sheriff, marshal, constable, or by any competent witness, who shall make affidavit to the service.
§ 492.190, RSMo