Who decides on the final form of the ballot text?

Constitutionof Saint Lucia

(adoptedin 22 February 1979, last amended in 26 September 1980)

http://www.stluciaparliament.com/the-constitution-of-saint-lucia

Chapter1.01 Elections Act

(Adopted5 June 1979, last amended in 27 November 2006)

http://aceproject.org/ero-en/regions/americas/LC/saint-lucia-elections-act-2012/view