A report completed in 1979 found that there had been poor liaison between the various departments involved, staff shortages and problems with the computer system. However, the main problem arose from the decision to combine re-enrolment with the 1976 census. Many voters had been confused by the need to re-enrol only a year after the previous election, and many had not bothered to fill out their forms. Census staff had not been given the authority to insist on the card being completed. To avoid disenfranchising a significant portion of the electorate, the Chief Electoral Officer decided just to carry forward many old voter registrations in the hope that duplications and outdated enrolments would be purged later. However, not enough staff were provided to complete that in time, and by the time that the rolls closed, 35,000 forms remained unprocessed. It has been estimated that as many as 460,000 enrolments may have been outdated or duplicates. Many voters (even candidates) found themselves enrolled in the wrong electorate or off the roll completely, and others were enrolled in multiple electorates or several times in the same electorate. That means that accurate figures for electoral turnout are impossible to determine, and other figures may not be reliable. Electoral redistribution The 1977 electoral redistribution was the most overtly political since the Representation Commission had been established by an amendment to the Representation Act in 1886, initiated by Muldoon's National Government. That a large number of people failed to fill out an electoral re-registration card had little practical effect for the electoral redistribution for people on the general roll, but it transferred Māori to the general roll if the card was not handed in. Together with a northward shift of New Zealand's population, that resulted in five new electorates having to be created in the upper part of the North Island. The electoral redistribution was very disruptive, and 22 electorates were abolished (see list below), and 27 electorates were newly created or re-established. In the North Island, fifteen electorates were newly created (, , , , , , , , , , , , , , and ) and six electorates were re-created (, , , , , and ). In the South Island, two electorates were newly created ( and ) and four electorates were re-created (, , , and ). The changes came into effect for the 1978 election. The election The election