Theory-wise, I don't think much has changed, just use the study guide for understanding the concepts, and make sure you use up-to-date statistics, and you should be fine.
If you want some statistics:
- According to the Australian Institute of Criminology, 1/3 of males and 1/2 of female offenders receive welfare or government payments as their main source of income
- According to a Justice Health report in 2004, 78% of the male prison population and 90% of the...