"Social science research has time and again come to the robust conclusion that exposure to the criminal justice system has profound and intergenerational negative effects on communities that experience disproportionate incarceration rates. It is imperative that we are able to measure the extent to which the criminal justice system disparately impacts our communities." You can find this information easily by referring to this briefing. It does an excellent job in synthesizing the information that is known about the disproportion of incarcerated minorities in the United States at the state level. In addition to incarceration rates by race/ethnicity, the following statistics (if available) are provided for each state and the U.S. federal prison system for the period 1978-2012: the degree to which Whites are underrepresented in the particular state's prisons and jails; Hispanics are overrepresented; Blacks are overrepresented; American Indians are overrepresented; Native Hawaiians are overrepresented.