The SIS spied on a senior Labour MP in the 1980s and 1990s, even though for part of that time he had an oversight role of the intelligence agency as chair of the justice select committee.
Richard Northey, Labour MP between 1984 and 1990 and again between 1993 and 1996, said it is "outrageous" that the SIS kept a file on him while he was a sitting MP.
The revelation comes in an interview for The Service, an RNZ podcast series investigating the activities of the SIS during the Cold War.
RNZ investigative journalist Guyon Espiner teamed up with Wellington writer and documentary maker John Daniell to produce the podcast.
Guyon Espiner has the story.
