I am advised:

The Government funded comprehensive reforms of $330.7 million over four years to implement the Strategy for Reducing Reoffending. The Strategy has introduced new intervention pathways for offenders in the community and custody. Corrective Services NSW has adopted an evidence based approach to tackle reoffending that is considered to be at the forefront of contemporary best practice. Implementation of key reforms under the Strategy to Reduce Reoffending were staggered, with some reforms only being implemented in September 2018. As the measure for the Strategy is retrospective, the full benefit of these reforms cannot yet be observed as insufficient time has elapsed since the reforms to full implementation. Robust and independent evaluations are underway for each reform with results expected later this year and early 2020.

It is noted the rate of reoffending is also susceptible to external pressures such as increases in policing efficiency.