The United States uses two national data collection systems to track detailed information on homicides.
The Federal Bureau of Investigation's annual Uniform Crime Reporting Program reports provide homicide data from thousands of law enforcement agencies across the Nation.
The Centers for Disease Control and Prevention also publish annual homicide data in the National Vital Statistics System, Fatal Injury Reports. Mortality data are produced from standardized death certificates filed throughout the United States.
Read the Bureau of Justice Statistic’s report The Nation's Two Measures of Homicide for information about these two data collection systems.