After the 1994 genocide in Rwanda, victims, perpetrators, and the country as a whole struggled to deal with the legacy of the mass violence. The government responded by creating a new version of a traditional grassroots justice system called gacaca. Bert Ingelaere, based on his observation of two thousand gacaca trials, offers a comprehensive assessment of what these courts set out to do, how they worked, what they achieved, what they did not achieve, and how they affected Rwandan society.

Weaving together vivid firsthand recollections, interviews, and trial testimony with...