serjeant-at-arms

Noun

 * 1)  An officer who attends upon the Lord Chancellor with the mace, and who executes various writs of process in the course of a Chancery suit.
 * 2)  A similar officer who attends on each House of Parliament, and arrests any person ordered by the House to be arrested.
 * 1)  A similar officer who attends on each House of Parliament, and arrests any person ordered by the House to be arrested.