"Anti-OTC laws [laws against the over-the-counter sale or purchase of syringes without prescriptions] are not associated with lower population proportions of IDUs. Laws restricting syringe access are statistically associated with HIV transmission and should be repealed."
Friedman, Samuel R. PhD, Theresa Perlis, PhD, and Don C. Des Jarlais, PhD, "Laws Prohibiting Over-the-Counter Syringe Sales to Injection Drug Users: Relations to Population Density, HIV Prevalence, and HIV Incidence," American Journal of Public Health (Washington, DC: American Public Health Association, May 2001), Vol. 91, No. 5, p. 793.