Removal of legal barriers to syringe access has been identified as an important part of a comprehensive approach to reducing HIV transmission among injecting drug users (IDUs). Legal barriers include both law on the books and law on the streets, i.e., the actual practices of law enforcement...

Law enforcement activity has been found to influence health risk behavior of injection drug users. Repeated measurements and mixed effects models were used to analyze the effects of an intensive long-term street-level police action to reduce open drug sales on syringe exchange program use....