Winston Peters.
Photo: RNZ / Samuel Rillstone
The judgment related to a High Court battle between the former Deputy Prime Minister, a number of top public servants, and former National MPs.
It all goes back to a leak to the media in 2017 which saw Peters overpaid $18,000 in superannuation.
The overpayment was accidental, and Peters repaid it immediately. It occurred because he did not tick a box about having a partner.
Following on from the leak, Peters took top public servants and two National MPs - who had been ministers at the time - to the High Court, claiming his privacy had been breached.