About us Our team Trustees Trustee: Alison Bell Alison Bell specialises in television and radio. She has over 20 years experience from a career that has included presenting for ITV News, Sky News, CNN and LBC radio. In 2014, Alison presented our BBC Radio 4 Appeal. Alison first came across Excellent Development and sand dams in September 2006, when she travelled to rural Kenya to produce a film of our work. Watch that film here.