1 KIEFEL CJ, BELL, KEANE, NETTLE, GORDON AND EDELMAN JJ. Since 1992, the Commonwealth Electoral Act 1918 (Cth) ("the Electoral Act") has required the scrutiny of votes in an election for each Division1 of the House of Representatives to include an indicative two-candidate preferred count ("the Indicative TCP Count")2. The Indicative TCP Count takes place, in a Division, after counting of first preference votes. It is a "count of preference votes (other than first preference votes) on the ballot papers that, in the opinion of the Australian Electoral Officer, will best provide an indication of the candidate most likely to be elected for the Division"3. 2 The plaintiffs were endorsed and nominated by the United Australia Party as candidates in a Division of the House of Representatives or for the Senate in the recent federal election, held on 18 May 2019. Prior to that election, the plaintiffs filed an application for a constitutional or other writ in this Court seeking to challenge the practice of the first defendant, the Australian Electoral Commission ("the Commission"), in making public, while polls remained open in some parts of Australia, one or both of the identity of the candidates selected by the Commission for the purpose of the Indicative TCP Count in a Division ("the TCP Candidates") and the progressive results of any of those indicative counts (collectively, "the TCP Information"). 3 The plaintiffs' complaint was about when the Commission made the TCP Information public. The plaintiffs did not allege that the Commission could not make the TCP Information public after the polls had closed in all States and Territories. The plaintiffs put their case in two ways. First, they submitted that publishing the TCP Information before the polls closed in all parts of the nation was not authorised by the Electoral Act. In particular, they submitted that by publishing that information, the Commission would not be impartial or avoid the appearance of favouring one or more of the candidates. Second, they submitted that by publishing the TCP Information while the polls remained open in any part of the nation, the Commission "would impermissibly distort the voting system in a manner that would compromise the representative nature of a future 1 Defined to mean "an Electoral Division for the election of a member of the House of Representatives": Electoral Act, s 4(1) definition of "Division". 2 Electoral Act, s 274(2A)-(2C). 3 Electoral Act, s 274(2A).

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