Labour MP Phil Goff will not face any sanctions for leaking the details of a report by the spy watchdog a day before it was publicly released.
Inspector-General of Intelligence and Security Cheryl Gwyn said this morning she had accepted Mr Goff's "full and unreserved" apology.
"The Inspector-General will not take the matter any further," she said in a statement.
Mr Goff breached a confidentiality order last month by disclosing details about her report on the Security Intelligence Service's release of information to blogger Cameron Slater.
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Ms Gwyn said no classified information was disclosed, but Mr Goff's leak led to premature media reporting on the content of the report, "to the detriment of other witnesses to the inquiry, particularly those adversely affected by the report".
The Inspector-General would be taking steps to ensure greater clarity around release protocols for future reports, and had also written to media organisations to remind them of their obligations under the Inspector-General of Intelligence and Security Act.
"The Inspector-General has significant powers to inquire into sensitive matters, and make adverse findings which may have a material impact on individuals.
"The obligations around confidentiality are necessary to ensure natural justice and fairness. It is important these obligations are respected."
The maximum penalty for breaching a confidentiality order under the Act is a $10,000 fine or a year in jail.