The Court of Aldermen of the City appoints a High Steward. Since 1900 this has been the Recorder of London, sitting at the Old Bailey.The High Steward since June 2020 is HHJ Mark Lucraft QC, https://www.cityoflondon.gov.uk The Aldermen also appoint a High Bailiff, since 1750 this had been the current Under Sheriff and Secondary of London, since 2017 this is now the senior administrator of the Old Bailey.The present High Bailiff is Adam Rout, https://www.cityoflondon.gov.uk Once a year, usually on the second Wednesday in November, these two officials swear into office the Jurors and their nominated Officers.
