Bill is a Technical Director of CEP, and also part-time Reader in Environmental Assessment at Imperial College London in the Centre for Environmental Policy. Bill has worked, lectured and published widely on environmental assessment and policy for over 30 years, in consultancy, academia and the voluntary sector. Most of his professional career has been spent working in interdisciplinarity. Bill holds a PhD based upon published work in accountability and EU environmental assessment law, policy and practice. He has extensive experience in EU policy and legislation, assessment and evaluation procedures, methodologies, and public and NGO participation.
Most recently, he led the evaluation of Defra’s Biodiversity Offsetting Pilot Programme and the Counterfactual study of the Nature Improvement Areas evaluation. He is also a member of the Academic Panel of Francis Taylor Building barristers' chambers and an Honorary Professorial Research Fellow in the School of Environment, Education and Development at the University of Manchester. In 2014 he was appointed Specialist Adviser to the House of Commons Environmental Audit Committee inquiry into HS2 and the Environment.
He is recognised as an international expert in advising on environmental assessment and compliance matters, e.g. for judicial review, and recently (April 2015) testified at the International Court of Justice.