Ceremonial maces in the United Kingdom carried by the Yeoman Usher of the Black Rod and placed behind the Lord Speaker on the Woolsack before the House sits. All members are required to bow their heads to the mace upon entering the chamber. It is absent when the monarch delivers his or her speech from the throne at State Openings of Parliament. The other mace accompanies the Lord Chancellor on official duties outside the House of Lords. Mace A was made in the reign of Charles II , is long and weighs . Mace B was made in the reign of William III and Mary II
Judicial functions of the House of Lords House of Lords; the same rule does not apply in the lower courts. A convict, however, may be pardoned by the Sovereign. This practice differs from that of many other nations. For instance, in the United States, the President may not issue pardons in cases of impeachment. The Senate can do no more than remove the accused from office and bar him from future offices of public trust or honour, though the accused remains liable to trial and punishment in the lower courts after removal from office. In the United Kingdom, however, the impeachment trial is like any other trial: