The Connecticut chapter of the NAACP is holding its first criminal justice reform summit to call attention to the disproportionate imprisonment of African-Americans.

The “Nothing About Us Without Us” event began Friday and is set to continue Saturday at Hillhouse High School in New Haven.

Attorney Benjamin Crump, who has represented the families of slain African-Americans including Trayvon Martin, Michael Brown, Tamir Rice and Stephon Clark, is scheduled to speak Saturday. Discussions with gubernatorial candidates and people who served time in prison also are planned.

Scot X. Esdaile, president of the Connecticut State Conference of NAACP Branches, says the number of people imprisoned in the U.S. has quadrupled to more than 2 million over the last three decades, with blacks incarcerated at a rate five times higher than whites.