There were 1,501 black prisoners for every 100,000 black adults in 2018, down sharply from 2,261 black inmates per 100,000 black adults in 2006.
The use of at-home DNA testing kits has raised concerns about whether consumers are comfortable with the use of their data by police.
Police officers in the United States still make more arrests for marijuana offenses than for any other drug, according to FBI data.
Both violent and property crime in the U.S. have declined over the long term, but Americans regularly say crime is up.
The first full fiscal year of the Trump administration saw large increases in the number of people arrested and criminally prosecuted for immigration offenses.
Trials are rare in the federal criminal justice system: Just 2% of criminal defendants went to trial in 2018. Acquittals are even rarer.
Attitudes vary considerably by race on issues including crime, policing, the death penalty, parole decisions and voting rights.
Blacks have long outnumbered whites in U.S. prisons. But a significant decline in the number of black prisoners has narrowed the gap.
More than a third of the states that allow executions haven’t carried one out in at least 10 years or, in some cases, much longer.
St. Louis led the nation with 66.1 murders per 100,000 people in 2017. It was followed by Baltimore, Detroit, New Orleans and Baton Rouge.