An introduction describes the study and discusses data collection, sampling, weighting, information processing, file structure, and codebook information. Variables include full-time and part-time employees and payroll; expenditures for current operations, capital outlay, and contributions to employee benefits; and intergovernmental expenditures paid to State and local governments. Figures cover the following sectors of the criminal justice system: police protection; judicial, legal services, and prosecution; public defense; corrections; and other criminal justice services. Data for the longitudinal file, 1971-79, include records for approximately 50 States, 3,030 counties, 7,466 cities, and 2,783 townships. Data are presented in two formats: a card-image file and an OSIRIS data set. A glossary is included.