On behalf of the International Union of Geological Sciences (IUGS), Initiative on Forensic Geology (IFG), we present the 3rd Ibero-American Seminar on Forensic Geoscience, in La Plata, Argentina. This aim of this event is to focus on recent global advancements in forensic geology with emphasis on Latin America. This represents the third in a series of seminars on the same theme. The first was held in Bogota, Colombia, in 2009. This was organized in collaboration with the Geological Society of London Forensic Geoscience Group, the National University of Colombia, Colombian Federal Police and National Institute of Legal Medicine and Forensic Science. A technical meeting on forensic geology subsequently took place in 2010, Montevideo, Uruguay as part of the IUGS Working Group on Forensic Geology (the predecessor to IUGS-IFG), and here the 2nd Ibero-American Seminar on Forensic Geoscience was considered. This then took place in Brasilia, Brazil, in 2013, in collaboration with the Brazilian Federal Police. Additional forensic geology training and knowledge transfer events took place in Brazil in 2015, 2016 and 2017. Forensic geology events were also held in Mexico in 2010 with the Procuraduría General de Justicia del Estado. Furthermore, in 2016, a meeting was held in the United Kingdom that included delegates from Chile, which concentrated on search methods to help locate, recover and identify those who disappeared during Pinochets Dictatorship (1973-1990).