The report mainly includes data from the new ADAM adult instrument. It provides separate reports for males and females and also includes probability-based data for males and updated data from earlier versions of the same document. The analysis focuses on crack cocaine, powder cocaine, marijuana, heroin, methamphetamine, and PCP. Data are also included regarding alcohol and drug dependency and abuse. The data includes age, race, percentage testing positive for drugs, and percentage positive for drugs by offense category. Additional data focus on education, housing, current employment, current health insurance, self-reported use of five primary drugs during the past 12 months, average number of days used in the past year by drug, and past 30-day use for booked arrestees. Further data cover past experience with drug treatment, past experience with any drug treatment or mental health treatment, risk of drug dependency and abuse, dynamics of drug markets, the circumstance of the last drug buy, and cash and non-cash transactions to obtain drugs. Findings about drug use among juvenile arrestees are also presented for several cities. Figures and tables