High Quality Content by WIKIPEDIA articles! Duncan Campbell is a British freelance investigative journalist, author and television producer who, since 1975, has specialised in the subjects of intelligence and security services, defence, policing, civil liberties and, latterly, computer forensics. He was a staff writer at the New Statesman from 1978 to 1991 and Associate Editor (Investigations) from 1988 to 1991. He was prosecuted under the Official Secrets Act in the ABC trial in 1978 and made the controversial series Secret Society for the BBC in 1987 (see Zircon affair). In 1988, he revealed the existence of the ECHELON surveillance program. He shares the same name as another Scottish-born journalist called Duncan Campbell, former Time Out and City Limits writer, who was a long-standing correspondent for The Guardian and who is married to the Oscar-winning actor Julie Christie.