An introduction describes the study and discusses data collection, sampling, information processing, weighting, file structure, and codebook information. Data for 1979 include records for 50 States and Puerto Rico, 2,861 counties, 6,005 cities, and 1,825 townships, for a total of 10,742 records. 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. The data come in two formats: a card-image file and an OSIRIS data set. A glossary and frequency addendum are included.