 Some defenders of truth commissions claim that these bodies are better than trials at producing comprehensive accounts of past abuses. This superiority, they say, justifies compromises in retributive justice. In the case of the TRC, it was not only the dismissal of regular rules of evidence that allowed commissioners to unearth more information. The commission's amnesty-for-truth mechanism created an incentive for perpetrators to come forward. Once they started to do so, a domino effect resulted: offenders who were exposed in the testimony of their colleagues rushed to testify lest they be indicted. Furthermore, since the commission was authorized to deny amnesty to anyone who had not provided “full disclosure”, those who came before it tried to give as much detail as they could.