House of Commons of the United Kingdom canister of chlorobenzylidene malonitrile (tear gas). Even members have been known to disturb proceedings of the House. For instance, in 1976, Conservative MP Michael Heseltine seized and brandished the Mace of the House during a heated debate. However, perhaps the most famous disruption of the House of Commons was caused by Charles I, who entered the Commons Chamber in 1642 with an armed force to arrest five members for high treason. This action was deemed a breach of the privilege of the House, and has given rise to the tradition that the monarch does not set foot in the House
Speaker of the House of Commons (United Kingdom) House. The Speaker is also responsible for overseeing the administration of the House. He or she chairs the House of Commons Commission, a body that appoints staff, determines their salaries, and supervises the general administration of those who serve the House. Furthermore, the Speaker controls the parts of the Palace of Westminster used by the House of Commons. Also, the Speaker is the "ex officio" Chairman of the four boundary commissions (for England, Wales, Scotland, and Northern Ireland), which are charged with redrawing the boundaries of parliamentary constituencies to reflect population changes. However, the Speaker normally does not attend meetings