Prime Minister John Key says a report into the spy agencies is likely to be released later this week and will not be redacted.
The review, led by Dame Patsy Reddy and former Labour Minister Sir Michael Cullen, is expected to recommend changes to the powers and relationship between the GSCB, which oversees international intelligence, and SIS, the domestic intelligence agency.
The intelligence and security committee is to meet behind closed doors tomorrow to discuss the report.
Only Labour and National MPs are on the committee, which is chaired by Mr Key.
Mr Key is hoping to get Labour support for any changes required. "We want to move forward on a bipartisan basis if we can."