Retroactivity and legitimate expectation in the UK Administrative Law. RDP-TM [Internet]. 2023 May 19 [cited 2026 Sep. 23];7:83-109. Available from: https://www.revistasmarcialpons.es/index.php/revistaderechopublico/article/view/retroactivity-and-legitimate-expectation-in-the-uk-administrativ