Twenty truth commissions have completed their work of examining and reporting on the abuses of deposed regimes, leaving behind a wide variety of records: transcripts, video and audio recordings, e-mail and computer files, and artifacts. Why save such evidence? According to Trudy H. Peterson, preservation "completes the commission's work. Oppressive regimes try to impose a selective amnesia on society...Saving the records makes sure that amnesia does not prevail." Final Acts is a guide to questions of law, politics, physical preservation, and access regarding materials generated by truth commissions. For example, how do the records relate to the law that created the commission? Who owns the evidence? Are there political constraints on the preservation of, or access to, some records? Does the country have an institution professionally capable of maintaining the records? Final Acts also describes the truth commissions that have completed their work so far and the disposition, or in some cases the loss, of their records.