GCSB. Government Communications Security Bureau. NZ's CIA/MI5/MI6 equivalent
The police got the spooks to do it, presumably because police snooping would have needed permission from a judge.
But GCSB can spy on foreigners freely, which makes it all legal. This reasoning has been lambasted on billboards by a beer company.
So now the GCSB is facing ugly questions about what is they actually do and why we even need spooks since they are just a police dirty trick and tool for the US.