Green Party co-leader Jeanette Fitzsimmons says she will request a copy of her personal file from the Security Intelligence Service.
The party wants a review of the agency after Green MP Keith Locke found a file had been kept a file on him for 51 years, even after he was elected to Parliament in 1999.
Records were made of his personal relationships and meetings with consituents.
Ms Fitzsimmons says no MP should be spied upon and it is "not on" for the SIS to treat MPs as enemies of the state.
She says the agency needs to be accountable to Parliament and the party will ask questions in the House this week about its function.
SIS, Minister John Key says he does not believe the agency was actively spying on Mr Locke after he became an MP.
He says there is a vast difference between an active investigation and an existing file being updated with newspaper clippings.
Mr Key says the SIS monitors and spies on people who it considers a threat to security.
