Crime days precursors study, Baltimore, 1952-1976

This study focuses on 354 male narcotic addicts who were selected using a stratified random sample from a population of 6,149 known narcotic abusers arrested or identified by the Baltimore, Maryland Police Department between 1952 and 1976. The sample was stratified based on race and year of police contact. These data were collected between July 1973 and January 1978. Variables include respondent's use of marijuana, hallucinogens, amphetamines, barbiturates, codeine, heroin, methadone, cocaine, tranquilizers, and other narcotics. Also of interest is the respondent's past criminal activity including arrests, length of incarceration, educational attainment, employment history, personal income, mobility, and drug treatment, if any.