There are 25 Aldermen, one for each Ward, where they lead the team of elected Common Councilmen. They all serve on the Court of Aldermen and the Court of Common Council and importantly are the pool of candidates from which the Lord Mayor is selected. So, Aldermen are expected to support and promote the City of London as a world leader in financial and professional services and engage widely with the Civic City to broaden their network and support the Lord Mayor.
In addition, the duty Alderman attends the Central Criminal Court, on a rota, to promote the role of the Old Bailey in upholding the rule of law. Aldermen are elected at least every six years on a rolling basis and also act as governors and trustees of a variety of schools, hospitals, charitable foundation and trust with connections to the City of London.