The program currently collects data from male booked arrestees in 24 sites across the Nation. In 21 of these sites, data from female booked arrestees are also collected, and in 11 sites male juvenile data are collected. Data indicate that the percentage of male booked arrestees who tested positive for any of the 10 drugs tested ranged from 39 percent in Indianapolis to 79 percent in Manhattan. Cocaine remained the most prevalent drug in the majority of sites. Exceptions were Portland, Denver, Phoenix, and Omaha, where marijuana use was higher than any other drug. For female arrestees, the percentage of drug positives ranged from 39 percent in San Antonio to 78 percent in Cleveland. In all sites but Portland, cocaine was the most prevalent drug among females. The percentage of juvenile male arrestees/detainees who tested positive for drugs ranged from 14 percent in St. Louis to 35 percent in San Diego. 2 tables, 4 figures, 1 reference, and 3-item select bibliography