A messenger-at-arms is an officer of the Scottish Court of Session, responsible for serving documents and enforcing court orders throughout Scotland. Messengers-at-arms must have a commission as a sheriff officer although, unlike sheriff officers, the jurisdiction of a messenger-at-arms is not limited to the area for which they have a commission. Both messengers-at-arms and sheriff officers are employed by private businesses and charge fees that are set by Act of Sederunt.