Lord Mayor of London been mandatory for election to the Lord Mayoralty. Two Sheriffs are selected annually by Common Hall, which meets on Midsummer's Day for this purpose. By an ordinance of 1435, the Lord Mayor must be chosen from amongst the Aldermen of the City of London. Those on the electoral roll of each of the City's 25 Wards select one Alderman, who formerly held office for life or until resignation. Now each Alderman must submit for re-election at least once in every six years. The Lord Mayor is then sworn in November, on the day before the Lord Mayor's Show ("see below").
Local government in London Lord Mayor of the City of London, which is a different position from that of Mayor of London. The City of London also has its own police force: The City of London Police, which is independent of the Metropolitan Police Service which covers the rest of Greater London. Within the City of London are two liberties, the Inner Temple and the Middle Temple, which are local authorities for most purposes to the present day. Local government in London Local government in London takes place in two tiers; a citywide, strategic tier and a local tier. Citywide administration is coordinated by