Mark is a Sydney Senior Counsel practising in administrative law and general law at Macquarie Street Chambers. He is author of New South Wales Administrative Law
, a two volume looseleaf service, published by Thomson Reuters which covers the Administrative Decisions Tribunal, Supreme Court judicial review, freedom of information and privacy.
He is the Title Editor of the two Administrative Law volumes of Laws of Australia
, also published by Thomson Reuters.
For seven years he was a part-time Judicial Member of the Administrative Decisions Tribunal of New South Wales in the General Division – hearing matters concerning privacy and freedom of information.
For sixteen years, Mark was an occasional part-time lecturer in undergraduate “Administrative Law” in the Law Faculties of the University of Sydney and the University of New South Wales.
Mark is the author/editor of a number of published legal texts, including:
- Judicial Review: The Laws of Australia, published in 2014 by Thomson Reuters with an encyclopaedic coverage of judicial review Australia wide;
- NCAT – Practice and Procedure, 2nd edition published in 2020 by Thomson Reuters; and
- Administrative Law – The Laws of Australia, published in 2017 also published by Thomson Reuters. It relates to State and Federal tribunals and it also covers the Ombudsmen and freedom of information around Australia.
In 2021, Mark was appointed by the Governor of NSW to be a member of the NSW Disability Council, providing specialist advice to the NSW Government and its many agencies on disability issues.
For 17 years, Mark was a director of Counsels Chambers Limited
(providing accommodation, internet data and telephony services to about 600 barristers in Sydney).
For 2 years, Mark served as a member of the Council of Law Reporting for New South Wales (in 2012 and 2013).
Mark was junior counsel in the High Court of Australia in 1986 for the British Attorney-General in the famous Spycatcher Case, against the late spy and author, Mr Peter Wright.
In 2002, Mark acted for 6,700 refugee plaintiffs and won one of the largest administrative law class-actions in history in the High Court of Australia. The case concerned systemic denial of natural justice in the Refugee Review Tribunal.
In 2011, Mark appeared for the Hells Angels Motorcycle Club in the High Court of Australia and successfully argued a leading constitutional law case.
He appears in disciplinary cases for doctors and lawyers. He also appears in cases for people who are opposed to the covid vaccinations rolled out in Australia, especially the children’s vaccine.