Portcullis House All rooms in the building are fitted with "annunciators" (monitors which announce in real-time the current business in the Chambers of the House of Commons, the House of Lords, or both). "Division bells" are also installed throughout the building, which alert MPs to the calling of a division (vote) in the Chamber of the House of Commons. Along with this, visual aids (a flashing image of a bell) are displayed on television sets and computer desktops in MPs' offices when the Division bell sounds. On the ground floor are a range of services including a waiter-service restaurant ("The Adjournment"), informal
House of Commons of the United Kingdom once in 1979. However, the threat of rebellions by their own party's backbench MPs often forces Governments to make concessions (under the Coalition, over foundation hospitals and under Labour over top-up fees and compensation for failed company pension schemes). Occasionally the Government is defeated by backbench rebellions (Terrorism Act 2006). However, the scrutiny provided by the Select Committees is more serious. The House of Commons technically retains the power to impeach Ministers of the Crown (or any other subject, even if not a public officer) for their crimes. Impeachments are tried by the House of Lords, where a simple majority