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2. Gray, James P. 2012. Why our drug laws have failed and what we can do about it. Philadelphia: Temple.
3. Delattre, Edwin. 2011. Character and cops: Ethics in policing. Washington, DC: American Enterprise Institute.
4. Institute for Crime and Justice Policy Research. 2022. World prison brief. https://prisonstudies.org/highest-to-lowest/prison_population_rate?field_region_taxonomy_tid=All. Accessed 5 June 2022.
5. Stevenson, Bryan. 2011. Drug policy, criminal justice and mass imprisonment. Global Commission on Drug Policies. http://fileserver.idpc.net/library/drug-policy-criminal-justice-mass-imprisonment%20(1).pdf.