New information shows a Ministry of Foreign Affairs investigation has been widened to hunt out the person blamed for confidential leaks.
Three Cabinet papers, as well as internal memos and details of staff pay, were leaked to Labour's Foreign Affairs spokesperson, Phil Goff, earlier this year, when the Government started on plans to make cut-backs at the Ministry.
The leaks also included the future of overseas posts and the organisation’s financial position.
In a move that was previously unknown, instructions to investigator Paula Rebstock were changed only three weeks into the Ministry of Foreign Affairs probe, with an explicit request that she find the person responsible for the embarrassing leaks.
The letter, from State Services Commissioner Iain Rennie, released under the Official Information Act, also instructs Ms Rebstock to look into the environment within which MFAT was operating during the period the information was leaked.
Prime Minister John Key has previously said around 20 people have access to the highly sensitive papers.
It is still unknown when the investigation will be completed.
3 News/RadioLIVE