Beginning in 1996, the National Institute of Justice (NIJ) initiated a major redesign of its multisite drug-monitoring program, the Drug Use Forecasting (DUF) system (DRUG USE FORECASTING IN 24 CITIES IN THE UNITED STATES, 1987-1997 [ICPSR 9477]). The program was retitled Arrestee Drug Abuse Monitoring (ADAM) (see ARRESTEE DRUG ABUSE MONITORING (ADAM) PROGRAM IN THE UNITED STATES, 1998 [ICPSR 2628] and 1999 [ICPSR 2994]). ADAM extended DUF in the number of sites and improved the quality and generalizability of the data. The redesign was fully implemented in all sites beginning in the first quarter of 2000. The ADAM program implemented a new and expanded adult instrument in the first quarter of 2000, which was used for both the male (Part 1) and female (Part 2) data. The juvenile data for 2000 (Part 3) used the juvenile instrument from previous years. The ADAM program also moved to probability-based sampling for the adult male population during 2000. Therefore, the 2000 adult male sample includes weights, generated through post-sampling stratification of the data. The shift to sampling of the adult male population in 2000 required that all 35 sites move to a common catchment area, the county. The core instrument for the adult cases was supplemented by a facesheet, which was used to collect demographic and charge information from official records. Core instruments were used to collect self-report information from the respondent. Both the adult and juvenile instruments were administered to persons arrested and booked on local or state charges relevant to the jurisdiction (i.e., not federal or out-of-county charges) within the past 48 hours. At the completion of the interview the arrestee was asked to voluntarily provide a urine specimen. An external lab used the Enzyme Multiplied Immunoassay Testing (EMIT) protocols to test for the presence of ten drugs or metabolites of the drug in the urine sample. All amphetamine positives were confirmed by gas chromatography/mass spectrometry (GC/MS) to determine whether methamphetamine was used. For the adult data, variables from the facesheet include arrest precinct, ZIP code of arrest location, ZIP code of respondent's address, respondent's gender and race, three most serious arrest charges, sample source (stock, flow, other), interview status (including reason the individual selected in the sample was not interviewed), language of instrument used, and the number of hours since arrest. Demographic information from the core instrument includes respondent's age, ethnicity, residency, education, employment, health insurance coverage, marital status, housing, and telephone access. Variables from the calendar provide information on inpatient and outpatient substance abuse treatment, inpatient mental health treatment, arrests and incarcerations, heavy alcohol use, use of marijuana, crack/rock cocaine, powder cocaine, heroin, methamphetamine, and other drug (ever and previous 12 months), age of first use of the above six drugs and heavy alcohol use, drug dependency in the previous 12 months, characteristics of drug transactions in past 30 days, use of marijuana, crack/rock cocaine, powder cocaine, heroin, and methamphetamine in past 30 days, 7 days, and 48 hours, heavy alcohol use in past 30 days, and secondary drug use of 15 other drugs in the past 48 hours. Urine test results are provided for 11 drugs -- marijuana, cocaine, opiates, phencyclidine (PCP), benzodiazepines (Valium), propoxyphene (Darvon), methadone, methaqualone, barbiturates, amphetamines, and methamphetamine. The adult data files include several derived variables. The male data also include four sampling weights, and stratum identifications and percents. For the juvenile data, demographic variables include age, race, sex, educational attainment, employment status, and living circumstances. Data also include each juvenile arrestee's self-reported use of 15 drugs (alcohol, tobacco, marijuana, powder cocaine, crack, heroin, PCP, amphetamines, barbiturates, quaaludes, methadone, crystal methamphetamine, Valium, LSD, and inhalants). For each drug type, arrestees reported whether they had ever used the drug, age of first use, whether they had used the drug in the past 30 days and past 72 hours, number of days they used the drug in past month, whether they tried to cut down or quit using the drug, if they were successful, whether they felt dependent on the drug, whether they were receiving treatment for the drug, whether they had received treatment for the drug in the past, and whether they thought they could use treatment for that drug. Additional variables include whether juvenile respondents had ever injected drugs, whether they were influenced by drugs when they allegedly committed the crime for which they were arrested, whether they had been to an emergency room for drug-related incidents, and if so, whether in the past 12 months, and information on arrests and charges in the past 12 months. As with the adult data, urine test results are also provided. Finally, variables covering precinct (precinct of arrest) and law (penal law code associated with the crime for which the juvenile was arrested) are also provided for use by local law enforcement officials at each site.