After retirement, Barder served on the Commonwealth Observer Mission, Namibian elections (1994); and as a Chair of Civil Service Selection Boards (1995–96). He was a Know-How Fund Consultant for diplomatic training in East and Central Europe (1996); a member of the Committee of the Speech and Debate Centre of the English-Speaking Union (1996–2009); a member of the Board of Management of the Royal Hospital for Neuro-disability (1996–2003); a founder member of the Special Immigration Appeals Commission (1997–2004); and Honorary Visiting Fellow to the Department of Politics and International Relations, University of Leicester (2006- ).
