Of the 38 respondents (79.2 percent) who shared injection equipment in the previous week, the number of different persons with whom they had shared ranged from 1 to 7. Shooting galleries had been used by the majority of respondents and continued to be used even in this era of AIDS. Twenty-five respondents indicated that they had shared syringes in a shooting gallery at least once in the previous month, and 18 reported having done so 6 or more times in the past month. Their reasons for sharing syringes and using shooting galleries were primarily practical and include the need to avoid carrying illicit injection equipment for fear of arrest. The article concludes with a discussion of the implications of these findings for both criminal justice and public health policy. 6 tables and 28 references (Author abstract modified)