The magnitude gap refers to the consistent differences in recall between victims and perpetrators (Baumeister, Stillwell, and Wotman, 1990). Victims recall a series of provocations leading up to an incident as well as the consequences afterwards, whereas perpetrators recall an incident as bracketed in time, omitting previous provocations and later consequences. Victims omit situational influences and recall more emotion, whereas perpetrators recall incidents as resulting from situational factors, often with the victim overreacting. This chapter introduces new research on the magnitude gap in free recall, with a focus on metamemory. In free recall, victim accounts were almost 20% longer than perpetrator accounts, showing significantly more description of the aftermath, more remembered conversation, and more quantitative detail, whereas perpetrators' accounts included more justification for their behavior. The metamemory analysis revealed that time was experienced as slowing down in a majority of victim incidents but that there was no reported change in experienced time with a majority of perpetrator incidents, though nearly one-third of the perpetrator incidents led to the experience of time moving more quickly. In addition, with victim incidents the most frequently reported reason for retrieval was that these incidents still generated emotion. This chapter applies the experimental findings on the magnitude gap to truth commissions, where victims and perpetrators confront each other with discrepant accounts of the same events. The chapter focuses on South Africa's Truth and Reconciliation Commission (TRC) as an exemplar for the twenty-eight national truth commissions conducted to date. During the TRC, victims of apartheid recalled events to document the crimes committed against them and to seek reparations, whereas perpetrators recalled events to detail the crimes they committed during apartheid and to obtain amnesty. Consistent with the experimental literature, the TRC hearings revealed dramatic and predictable discrepancies between the memories of perpetrators and victims. Perpetrators bracketed their criminal incidents within narrow time frames and in the context of doing their jobs; victims recalled the incidents as an extended series of events that continued to generate emotion. Moreover, many victims did not believe the discrepancies between their own personal memories and those of the perpetrators, and they went on record stating that the perpetrators failed to disclose fully, potentially denying them amnesty. Research on the magnitude gap can help explain the profound differences in recall between victims and perpetrators during truth commissions, ultimately contributing to the overall effectiveness of these commissions.