PRIMA members have helped advance the world’s understanding of the human rights dimensions of conflicts by integrating quantitative analysis of data on human rights violations alongside qualitative, legal and historical evidence. During and after armed conflicts, there is often intense debate about what happened and about the extent and patterns of human rights violations and suffering by civilians. PRIMA members have supported non-governmental organizations and official truth commissions in collecting and analyzing data on large-scale human rights violations. For example, Romesh Silva served as the lead statistical analyst for the Timor-Leste Commission for Reception, Truth and Reconciliation. He oversaw the commission’s collection of statistical data covering the 1974–99 conflict, which included testimony of 8,000 victims, a graveyard census, and results of a household survey. Silva analyzed these data and led the preparation of the statistics chapter included in the Commission’s multi-volume final report. As consultants to Benetech and HRDAG, Tamy Guberek, Daniel Guzman, and Romesh Silva assisted the American Bar Association in analyzing patterns of human rights violations during the 1991–2002 conflict in Sierra Leone.