Two and a half million enrolment packs and three million referendum brochures have been destroyed after a botch up in the question around assisted dying.
It is estimated to cost $1 million.
The Ministry of Justice had to re-print the material that could have potentially distracted voters in deciding on the End of Life Choice Act referendum.
In some of the brochures, one of the answers to: 'Do you support the End of Life Choice Act 2019 coming into force?' was printed in bold font.
That question will be asked at the 2020 election as one of the two referendum questions.
Secretary for Justice Andrew Kibblewhite today said some of the brochures were packed along with a cannabis referendum brochure to be mailed to voters, and was part of the print run in Auckland.
"Because of this, a decision was made to destroy all 2.5 million collated enrolment update packs and the other three million referendum brochures.
"Having one of the answers to the referendum question highlighted bold could unduly influence a voter one way or the other. It is our job to ensure the voting public has accurate and impartial information on both referendum topics."