Duncan worked for the Guardian from 1987 to 2009 and was its crime correspondent, Los Angeles correspondent and senior correspondent. He has written about several miscarriages of justice, including with Sekar. He was one of the first journalists to highlight the wrongful convictions of the Cardiff Three. Campbell has also contributed to Sekar’s second book The Cardiff Five: Innocent Beyond Any Doubt and continues to highlight justice issues.
Campbell was previously the news editor of Time Out and City Limits. He is a former chairman of the Crime Reporters’ Association, presented of the BBC radio programme,Crimedesk, and is the author of a number of books on crime, including The Underworld, That was Business, This Is Personal and A Stranger and Afraid: the story of Caroline Beale.
His latest book is If It Bleeds, a novel about crime reporting. He has also written for theObserver and the New Statesman and presented the BBC Radio Four programme, Bandits of the Blitz, about crime during the Second World War. He is a winner of the Bar Council’s Newspaper Journalist of the Year award for his articles on victims of domestic violence who were convicted of murder.