Luis Pásara has worked on the justice systems of Peru, Argentina, Ecuador, Guatemala, and Mexico. His publications include: Judges, Justice, and Power in Peru (Lima: CEDYS, 1982), Law and Society in Peru (Lima: El Virrey, 1988), Judicial Decisions in Guatemala (Guatemala: MINUGUA, 2000), Lima Attorneys in the Administration of Justice: A Preliminary Approximation (Lima: Justicia Viva, 2005), How the Judges of the Federal District Decide Criminal Cases (Mexico, D.F.: Universidad Nacional Autonoma de Mexico, 2006), The Use of international human rights instruments in the administration of Justice (Quito: Ministerio de Justicia y Derechos Humanos, 2008), Law, Justice, and Society in Latin America (Mexico, D.F.: UNAM, 2010), Three Keys to Justice in Peru (Lima: Fondo Editorial de la PUCP, 2010), Judicial Production in Ecuador (Mexico, D.F.: UNAM, 2011) and An Impossible Reform: Latin American Justice on the Docket (Lima: Fondo Editorial de la PUCP, 2014 y México, D.F.: UNAM, 2014).
He has been a consultant for the Inter-American Institute of Human Rights and the Andean Commission of Jurists, and he has undertaken numerous consultancies for the World Bank, USAID, EuroSocial, and the Legal Defense Institute (Peru). Between 1996 and 2000 he was in charge of the judicial issues at the United Nations Verification Mission in Guatemala (MINUGUA). He was a fellow at the Woodrow Wilson International Center for Scholars in Washington, D.C. in 1980 and 2011-2012 and at the University of Notre Dame in 1985 and 2000-2002. From 2002 to 2004, he was a visiting research professor at the Centro de Investigación y Docencia Económica (CIDE) in Mexico City, Mexico. From 2004 to 2011, he was a researcher for the Inter-University Institute of Iberian-American Studies at the University of Salamanca, Spain. He is a full member of FLACSO (Latin American Faculty of Social Sciences) of Spain.