Foster attended Jesus College, Oxford where she read English, and then the Courtauld Institute of Art, where she read for an MPhil in illuminated texts. She subsequently studied the law conversion course at London's City University with the benefit of a scholarship from Jesus College. She was elected an Hon. Fellow of Jesus College in 2020.[3]
Career
Foster practised in tax and administrative law at 39 Essex Chambers, where she rose to be joint head of chambers, before she was appointed a judge.[4]
Foster was called to the Bar by Inner Temple in 1984, and appointed Queen's Counsel in 2002. In the same year she was elected a Bencher of Inner Temple. She was appointed a Deputy High Court Judge in the Chancery Division in 2008 and in the Queen's Bench Division, Administrative Court, in 2018. [3]