Scottish journalist and a former deputy editor of The Scotsman. Editor of The Independent on Sunday at the time of the Inquiry, Mullin gave evidence on behalf of that paper and said that IoS journalists would be expected to work to the highest ethical standards. He defended his decision to publish a story during the days of the Inquiry detailing Andy Coulson's shareholding in News Corporation while Coulson was working for 10 Downing Street. Mullin refused to reveal how he had come by Coulson's witness statement.