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Changes in published homicide statistics 2006–2008

NZ Police have revised previously published statistics for homicides for the past three years, to reflect more accurate information in Police IT systems.

The reasons for revising these statistics include:

  • Police have recently implemented greater clarity regarding definitions and rules for recording culpable deaths (Culpable homicide is defined in the Crimes Act 1961 as “except as provided in section 178 (infanticide), culpable homicide is either murder or manslaughter.” The relevant offence codes for this definition are: 1111, 1112, 1113, 1116, 1119, 1130, and 1140.).
  • Police have enhanced the quality assurance processes employed in publishing these statistics. 
  • In order to ensure comparability across recent years, homicide statistics for each of the latest three calendar and fiscal years have been revised.

The homicide offence category is particularly broad in New Zealand. It includes murder, attempted murder, manslaughter, infanticide, illegal abortion, and aiding suicide.

There were 92 homicides in the last year; down from 111 the previous year, with 91 resolved; a resolution rate of 98.9 percent.

The following tables summarise the net impact of these revisions on previously published official statistics:

Table 1: Net impact to Official Statistics

District Calendar year Fiscal year
2006 2007 2008 2006–07 2007–08
Northland 1 -1 0 0 0
Waitemata 0 0 0 0 0
Auckland City 0 0 0 0 0
Counties/Manukau 0 0 0 0 -1
Waikato 0 0 0 0 0
Bay of Plenty 0 0 0 1 0
Eastern 0 0 1 1 0
Central 1 2 0 2 0
Wellington 0 0 1 0 0
Tasman 0 0 0 0 0
Canterbury 1 3 1 5 0
Southern 0 0 -1 0 0
TOTAL 3 4 2 9 -1
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