The Chief Serjeant-at-Arms is an office in the Parliamentary Service charged with duties involving service to the Speaker, Members, the Clerk and other staff of the National Assembly and performance of chamber and ceremonial duties. The Serjeant-at-Arms also perform a number of miscellaneous security and safety duties for the general welfare of Parliament. In performing these duties the Office of Serjeant-at-Arms perform the following duties:-

• Maintain custody of the mace;
• Ensure protective security for all persons and property and advises the Speaker and the Clerk on the same;
• Perform chamber and ceremonial duties;
• Provide interdepartmental and chamber support services;
• Enforce and implement the Speaker's orders and other directives;
• Allocate office accommodation to Senators and staff and conference rooms to Committees;
• Ensure fire prevention and safety of the facilities;
• Ensure compliance with occupational health requirements/standards;
• Access control management;
• Crowd management;
• Ensure desirable housekeeping standards;
• Maintain decorum within the precincts of parliament;
• Disaster preparedness and mitigation;
• Investigating incidents;
• Coordinate parliament police;
• Disseminates relevant information to members through notice boards;
• Carries out periodical security surveys; and
• Conducts institutional risk assessment;