This collection consists of four county-level data files from the Uniform Crime Reports.

The first three provide arrests for Part I offenses (murder, rape, robbery, assault, burglary, larceny, auto theft, and arson) and for Part II offenses (forgery, fraud, embezzlement, vandalism, wea pons violations, sex offenses, drug and alcohol abuse violations, gambling, vagrancy, curfew violations, and runaways). The fourth file provides reported offenses (as opposed to arrests) for Part I crimes only. Two county population variables are included : one for total county population and the other for counties reporting six months or more of data. Data collected by the United States Department of Justice - Federal Bureau of Investigation.