The growing use of restorative justice provides a major opportunity for experimental criminology and evidence-based policy. Face-to-face meetings led by police ofﬁcers between crime victims and their offenders are predicted to reduce the harm to victims caused by the crime. This prediction is derived not only from the social movement for restorative justice, but also from psychological and sociological theories. Four randomized, controlled trials of this hypothesis in London and Canberra, with point estimates disaggregated by gender, tested the prediction with measures of both successful interaction (apologies received and their perceived sincerity) and the hypothesized beneﬁts of the ritual (on forgiveness of, and reduced desire for violent revenge against, offenders, and victim selfblame for the crime). The meta-analyses of the eight point estimates suggest success (as victims deﬁne it) of restorative justice as an interaction ritual, and some beneﬁts as a policy for reducing harm to victims.