The spymaster who initially cleared the Government Communications Security Bureau (GCSB) of illegally snooping on Kim Dotcom was also directly involved in seeking the suppression order signed by Bill English as Acting Prime Minister.
The Herald has learned former chief legal adviser Hugh Wolfensohn was involved in arranging the once-in-a-decade certificate which sought to bury the scandal.
The Prime Minister confirmed yesterday for the first time it was Mr Wolfensohn's advice that quelled GCSB and police fears they had illegally spied on Mr Dotcom and his co-accused Bram van der Kolk.
He told Parliament: "The best of the legal advice presented by Hugh Wolfensohn was that it was legal. As we now know, GCSB and Mr Wolfensohn were wrong."
Mr Wolfensohn no longer works at the bureau after being placed on "gardening leave". A spokesman for the GCSB said of Mr Wolfensohn's advice: "With hindsight, we know it wasn't right."