A Bill in the name of Labour MP Ruth Dyson drawn from the ballot on March 23. The purpose of this Bill is to add World Heritage Sites to Schedule 4 of the Crown Minerals Act 1991, which will provide them with protection from mining. First reading interrupted on May 11. Both National and NZ First indicated opposition to the Bill so it is set for defeat when next debated. First reading debate completed on June 17 with the Bill voted down. Just Labour and the Greens were in support. Crown Minerals (Protection of World Heritage Sites) Amendment Bill.