New documents show the David Henry inquiry asked Parliamentary Service for access to the phone records of Fairfax journalist Andrea Vance - but they were declined.
Parliamentary Service did not hand over Vance's phone records, but gave them her building access records.
Green Party co-leader Russel Norman said he believed Prime Minister John Key knew about the Henry Inquiry asking Parliamentary Service for the phone records.
Speaker David Carter, in response to written questions, confirmed the Henry Inquiry established under the authority of the Prime Minister to look into the early release of the GCSB report, requested Vance's phone and building access records from Parliamentary Service.
Dr Norman said it raised serious questions about the freedom of the press.