On Friday 6 May 2022, Professor David Feldman delivered the 2022 Sir David Williams Lecture entitled "White water rafting: The UK's constitutions at a time of stress". The Sir David Williams Lecture is an annual address delivered by a guest lecturer in honour of Sir David Williams, Emeritus Rouse Ball Professor of English Law and Emeritus Vice-Chancellor of Cambridge University. More information about this lecture, including photographs from the event, is available from the Centre for Public Law website at: http://www.cpl.law.cam.ac.uk/sir-david-williams-lectures This entry provides an audio source for iTunes.