Prison Performance Tables

The Prison Performance Tables provide a quarterly grading of the performance of all prisons within the Corrections network. A number of factors are used in this analysis, and results are weighted to account for the particular composition of prisoners and facilities at each site.

The Custodial Performance Table includes results for core security and internal procedures:

  • Core security – a gateway test for certain incidents including breakout escapes, escapes from escort, and significant disorder events. These incidents are considered unacceptable regardless of the number of prisoners or any other factors.
  • Internal procedures – a score assigned to each prison based on the number of core security events and the level of other incidents, including assaults on staff and prisoners, justified complaints, and the percentage of positive general random drugs tests.

The Industry, Treatment and Learning Performance Table reflects performance against a number of key performance indicators measuring the delivery of programmes that provide offenders with the skills and opportunities that they need to take greater control of their lives. The effectiveness of these programmes is assessed annually and the results of the latest assessment were published in the 2015/16 Annual Report (see page 50).

On the basis of results in the Custodial Performance Table and the Industry, Treatment and Learning Performance Table, each prison is graded as exceptional, exceeding, effective, or needs improvement.

Read about how the Prison Performance Table results are calculated.

Custodial Performance Results

There has been an overall improvement in results in Q1 2016/17 from Q4 2015/16. The results reflect a reduction in the number negative incidents from the previous quarter. The table below contains the serious negative events that contribute to the Q1 2016/17 custodial performance result.

Negative EventsQ1 2016/17Q4 2015/16Q3 2015/16Q2 2015/16
Breakout escape 0 0 0 0
Escape - from escort 1 0 0 2
Significant disorder event 00 0 0
Unnatural death 0 0 0 0
Serious assault - prisoner / prisoner 7 10 15 12
Serious assault - prisoner / staff2732
Escape - abscond0000
Escape - breach temporary release0000
Disorder event2557
Random general drug test failures above tolerance5623

There was one core security event in the quarter; an escape from hospital escort occurred in the Hawke’s Bay during August, the offender has subsequently been apprehended. This event means that Hawke’s Bay Prison automatically records a grade of needs improvement, irrespective of the internal procedures score.

The improvement in performance has resulted in a reduction in the number of prisons in the needs improvement grade. The table below summarises the number of prisons in each grade for Q4 2015/16 and Q1 2016/17.

Number of prisons per gradeQ1 2016/17Q4 2015/16
Exceptional45
Exceeding40
Effective88
Needs Improvement24
Total1817

Note that ASCF was not included in the Q4 2015/16 results.

View Custodial Performance Results for Q1 2016/17

Prison Industry, Treatment and Learning Performance Table

Performance results remained stable between Q4 2015/16 and Q1 2016/17 with no prisons in the needs improvement grade.

View Industry Treatment and Learning Performance Results for Q1 2016/17