Arrests for Hard Drugs Have No Impact On Injection Drug Use Rates
"Changes in hard drug arrest rates did not predict changes in IDU population rates. These results are inconsistent with criminal deterrence theory and raise questions about whether arresting people for hard drug use contributes to public health."
Samuel R. Friedman, PhD, et al., "Drug Arrests and Injection Drug Deterrence," American Journal of Public Health, February 2011, Vol. 101, No. 2, p. 347.