Crime Classification Manual Part II Chapter 6 2 A STANDARD SYSTEM FOR INVESTIGATING AND CLASSIFYING VIOLENT CRIMES SECOND EDITION THE UNIFORM CRIME REPORTING PROGRAM The earliest system for classification of homicide is the Uniform Crime Reports (UCR). The UCR, prepared by the FBI in conjunction with the U.S. Department of Justice, presents statistics for crimes committed in the United States within a given year. Recognizing a need for national crime statistics, the International Association of Chiefs of Police formed the Committee on Uniform Crime Records in the 1920s to develop a system of uniform police statistics. Seven offenses were chosen to serve as an index for gauging fluctuations in the overall volume and rate of crime. Known collectively as the crime index, these offenses were the violent crimes of murder and nonnegligent manslaughter, forcible rape, robbery, and aggravated assault, and the property crimes of burglary, larceny theft, and motor vehicle th...