Ardern pledged that her government would be open and transparent. A pledge honoured more in the breach than in performance. Lord Acton noted:

"Everything secret degenerates, even the administration of justice: nothing is safe that does not show how it can bear discussion and publicity - Lord Acton

Wikipedia

John Emerich Edward Dalberg-Acton, 1st Baron Acton, 13th Marquess of Groppoli, KCVO, DL (10 January 1834 – 19 June 1902) was an English Catholic historian, politician, and writer. He was the only son of Sir Ferdinand Dalberg-Acton, 7th Baronet,[1] and a grandson of the Neapolitan admiral and prime minister Sir John Acton, 6th Baronet.[2][3] Between 1837 and 1869 he was known as Sir John Dalberg-Acton, 8th Baronet.

He is perhaps best known for the remark, "Power tends to corrupt, and absolute power corrupts absolutely. Great men are almost always bad men...", which he made in a letter to an Anglican bishop MORE AT LINK