1. Allen, R. (2011). Last resort: Exploring the reduction in child imprisonment 2008–11. London: Prison Reform Trust.
2. Allen, R. (2014). Justice reinvestment: empty slogan or sustainable future for penal policy? London: Transform Justice.
3. Amnesty International undated Executions of juveniles since 1990 International. http://www.amnesty.org/en/death-penalty/executions-of-child-offenders-since-1990 Accessed 28 July 2014.
4. Dowden, C., & Andrews, D. (1999). What works in young offender treatment: A meta-analysis journal. Forum on Corrections Research Volume:11 Issue 2 Correctional services Canada Ottawa.
5. Andrews, D., Hollin, C., Raynor, P., Trotter, C., & Armstrong, B. (2000). Sustaining effectiveness in working with offenders. Cardiff: Cognitive Centre Foundation.