1. Professor, UNSW Law, Co-Director, The Judiciary Project, Gilbert + Tobin Centre of Public Law. The author may be contacted at .
2. Professor, Adelaide Law School, University of Adelaide. The author may be contacted at . Our thanks to Andrew Lynch and Brian Opeskin, who worked with us on a survey from which we have extracted the data considered in Part 2 of this article. We are also grateful to Anselmo Reyes, Simon Young and Jamie Hanson, whose comments on earlier versions of this article were very helpful.