The terms of reference of the royal commission were broad. They included consideration of the electoral system and many other matters of democracy, and the report was broad-ranging. It began by identifying 10 criteria by which they would judge electoral systems. In the material we have provided to the committee, we included the report that the electoral commission undertook in this review of MMP in 2012.
We reported to the New Zealand Parliament. We attached as an appendix to that report the 10 criteria that the royal commission used in judging different electoral systems. I would recommend it to the committee. Notwithstanding that this report was undertaken 30 years ago, it remains a very relevant and helpful piece of work. The report in general would reward your consideration.
It took 18 months because it's a comprehensive and thorough piece of work that included considerable public consultation together with visits to international jurisdictions.