Reviewers and Special Advisor

Hon Sir Terence Arnold KNZM QC

Sir Terence Arnold is a former Solicitor-General and retired Justice of the Supreme Court of New Zealand.

Sir Terence taught at Victoria University in Wellington and at several Canadian universities, specialising in criminal law and justice. From 1985-1994, he was a litigation partner at Chapman Tripp Sheffield Young, becoming a barrister sole in 1994 and appointed Queen’s Counsel shortly thereafter.

In 2000, he was appointed Solicitor-General, a position he held until 2006, when he was appointed as a Judge to the Court of Appeal. He was further appointed a Judge of the Supreme Court on 11 June 2013. In 2017, he retired from the permanent bench of the Supreme Court but sat as an Acting Judge when required.

In the 2016 New Year Honours, Sir Terence was appointed a Knight Companion of the New Zealand Order of Merit, for services to the judiciary.

Sir Terence also chaired the Inquiry into Operation Burnham and submitted its report to the Attorney-General in July 2020.


Matanuku Mahuika

Mr Mahuika affiliates with Ngāti Porou and Ngāti Raukawa. He founded the law firm Kāhui Legal, a specialist law firm specialising in Maori development and the interface between iwi and Māori organisations and the Crown, local government and other entities.

He has experience as a lawyer advising on a wide range of corporate, commercial, Treaty of Waitangi, Māori land and administrative law issues.

He holds a number of directorships and governance roles including as a board member of Callaghan Innovation, and is the former Chair of Ngāti Porou Holding Company Ltd.

Mr Mahuika was the director of Te Runanganui o Ngāti Porou from 2015-2019.


Photograph of Dr Penelope Ridings

Dr Penelope Ridings, MNZM

Dr Ridings is a New Zealand barrister and international lawyer. She is Honorary Professor at the University of Auckland Law School and is Member-Elect of the United Nations International Law Commission.

She has broad experience in public international law, including as a career diplomat with extensive practical experience in developing, implementing, and adjudicating International Law.

During her career in the New Zealand diplomatic service, Dr Ridings led the Legal Division of the Ministry of Foreign Affairs and Trade (2011-2015) and the Ministry’s Trade Law Unit (2004-2007). She also served as New Zealand’s Ambassador to Poland, Estonia, Latvia and Lithuania (2008-2011) and High Commissioner to Samoa (2001-2004).

In 2015, she was granted the Member of the New Zealand Order of Merit for services to the State.