In September last year, Edward Snowden said he had seen large quantities of metadata from New Zealanders' communications while working in the NSA's regional headquarters in Hawaii.
He was presumably referring to New Zealanders' communications intercepted during the Asia-Pacific regional monitoring conducted at Waihopai and other allied bases.
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The Snowden documents show how foreign intelligence staff follow a step-by-step process to access the GCSB's South Pacific intelligence, including the metadata and communications of New Zealanders living, holidaying and interacting in that region.
A British agency guide shows that there are two databases on "Ironsand" (Waihopai)-intercepted communications they can access. "To query the data on these sites," the guide says, "you must first have a briefing on NZSID7, the law that governs what the GCSB can and can't do." The foreign staff were instructed to read a written briefing and then, before accessing the New Zealand intelligence, take an online test on the GCSB rules.