Education
University of Sydney.
University of Sydney.
From 1995-1998 he was Secretary of the Australian Bill of Rights Group, and in 1998 joined Reform the Legal System. In the 1999 New South Wales election he was elected to the Legislative Council. Breen joined the Australian Labor Party on 5 May 2006, but resigned on 18 July to form the Human Rights Party.
He unsuccessfully contested the 2007 New South Wales state election.
He has campaigned over an alleged miscarriage of justice in the conviction of Stephen Wayne "Shorty" Jamieson for the 1988 murder of Janine Balding. In 2016, Breen was a key person in the Renewable Energy Party.
He was a solicitor before entering politics, achieving a Diploma of Law from Sydney University. In 2014 Breen became an adviser to Senator Ricky Muir of the Australian Motoring Enthusiast Party but was sacked on 5 August 2014.
He was originally a member of the Liberal Party, serving as President of the Campbelltown Young Liberals 1971-1972.