Dunion spent periods in the civil service and university administration. He was Editor of the pro-devolution magazine Radical Scotland.[5] He joined Oxfam as Campaigns Manager and then took up the post of Chief Executive of Friends of the Earth Scotland. From 1996 to 2000 he also served as Chairman of Friends of the Earth International, heading delegations to the United Nations and European Commission.
Dunion was for many years a notable proponent for freedom of information, and gave evidence to the Justice Committee scrutinising the passage of the Bill through the Scottish Parliament. He wrote the book Troublemakers – The Struggle For Environmental Justice In Scotland.[6][7]
Information Commissioner
Dunion was appointed as the first Scottish Information Commissioner in February 2003. He was reappointed in 2008.[8] Towards the end of his second term he proposed extra powers that he thought that the next Commissioner would need.[9] He left office on 23 February 2012 after two terms - a total of nine years in office, during which time he handled some 1,500 cases.[10][11]
In 2012 Dunion was appointed Honorary Professor in the University of Dundee School of Law.[12] He is executive director of their Freedom of Information Centre.[13] In 2012 he was appointed by the President of the World Bank as a member of the bank's Access to Information Appeals Board.[14]
In April 2013 he was appointed as a non-lawyer member of the Scottish Legal Complaints Commission.[11]
Standards Commission
He became a member of the Standards Commission for Scotland on 1 September 2015.[15] In November 2016 it was announced that he would become the Convener of the Commission, taking up the position on 1 February 2017.[16]
Awards and honours
In 2000 he was awarded an OBE for his work with Friends of the Earth.
In 2011 he was awarded an honorary degree, LLD, by the University of St Andrews.[17]
Personal life
Dunion is married to Linda Malloch, who was formerly married to Iain Gray, the former leader of the Labour Group in the Scottish Parliament.[18]