Bureau of Justice Statistics (BJS) is the primary source for justice statistics in the United States. BJS collects analyzes, publishes, and disseminates information on crime, criminal offenders, victims of crime, and the operation of justice systems at all levels of government. BJS maintains more than two dozen major data collection series and publishes a wide variety of reports annually which receive nationwide distribution. Core statistical efforts include annual data on criminal victimization, populations under correctional supervision, federal criminal offenders, federal case processing, and criminal Justice expenditures and employment. Periodic data series are undertaken to provide statistical information on felony convictions, state court case processing, the composition and characteristics of correctional populations, prosecutorial practices and policies, and the administration of law enforcement agencies and correctional facilities. BJS conducts special studies and analyses on policy relevant issues and emerging areas in interest. In addition, BJS provides financial and technical support to State and local governments in developing capabilities in criminal justice statistics and improving their criminal history records and information systems.