On 17 June 2014 Sue Hall (Chief Executive, West Yorkshire Probation Trust and Chair, Probation Chiefs Association) delivered the 17th Annual Bill McWilliams Memorial Lecture entitled 'Why Probation Matters'. This is the seventeenth of a series of annual memorial lectures given in the spirit of Bill McWilliams’s work. The Bill McWilliams Memorial Lecture is supported by the Clarke Hall Fund, the Barrow Cadbury Trust and the late Hugh Sanders OBE. For more information about the lecture, please contact Mrs Joanne Garner, Institute of Criminology, University of Cambridge, Sidgwick Avenue, Cambridge CB3 9DA, 01223 335360, [email protected] Slides: http://www.crim.cam.ac.uk/events/documents/why_probation_matters.pdf