Canberra's constitutional citizenship controversy continues

Australian-New Zealand dual citizenship has caused another stir in Canberra after Deputy Prime Minister Barnaby Joyce was revealed to be a New Zealand citizen yesterday.

Under Australian constitution, anyone with dual citizenship cannot stand for federal election.

Joyce says the legal advice he’s received suggests he won’t be disqualified by Australia’s constitution and points out his father moved to Australia in 1947, a year before dual citizenship was created.

Reporter Mack Smith spoke to Anne Twomey, a Professor of Constitutional Law at the University of Sydney Law School and asked her whether Barnaby Joyce was really in the clear.