Who drafts the referendum question?

See generally Graeme Orr ‘The Conduct of Referenda and Plebiscites in Australia: a Legal Perspective’ (2000) 11 Public Law Review 117, pages124-125, and the case Boland ν Hughes (1988) 83 Australian Law Reports 73

Mandatory national referendum questions are always of the form ‘Do you approve of the proposed law to ….’ where the proposed law is described by the long title of the Bill which is formally within Parliament’s province, though in reality is a matter of government drafting.