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
Leader of the House of Commons years, the post has been held jointly with that of Lord President of the Council, Lord Privy Seal, or First Secretary of State. The Leader is assisted in the Office of the Leader of the House of Commons by the Deputy Leader of the House of Commons. At times the nominal leadership was held by the Prime Minister but the day-to-day work was done by a Deputy. At other times a Deputy was appointed merely to enhance an individual politician's standing within the government. However, since 2010 the Deputy Leader of the House of Commons has been a ministerial role