Who decides on the final form of the ballot text?

Cayman Islands
- Optional referendum - Government
- Optional referendum - Legislature
Constitution Order2009
http://www.legislation.gov.uk/uksi/2009/1379/pdfs/uksi_20091379_en.pdf
TheReferendum (Single-Member Constituencies) Law, 2012
http://www.electionsoffice.ky/downloads/the_referendum_single_member_constituencies_law_2012.pdf
70.—(1) Without prejudice to section 69, a law enacted by the Legislature shall make provision to hold a referendum amongst persons registered as electors in accordance with section 90 on a matter or matters of national importance that do not contravene any part of the Bill of Rights or any other part of this Constitution.
(2) Before a referendum under this section may be held—
(a) there shall be presented to the Cabinet a petition signed by not less than 25 per cent of persons registered as electors in accordance with section 90;
(b) the Cabinet shall settle the wording of a referendum question or questions within a reasonable time period as prescribed by law; and
(c) the Cabinet shall make a determination on the date the referendum shall be held in a manner prescribed by law.
(3) Subject to this Constitution, a referendum under this section shall be binding on the
Government and the Legislature if assented to by more than 50 per cent of persons registered as electors in accordance with section 90.
Legislation decides on the wording of a question inthe Act enacted for a referendum, as in the example of The Referendum(Single-Member Constituencies) Law, 2012. For a referendum initiated by citizens, the Cabinet settles the wording