Forensic Architecture is both the name of the agency established in 2010, and a form of investigative practice into state violence and human rights violations that traverses architectural, journalistic and legal fields, and shifts between critical reflections and tactical interventions. Counter Investigations presents a selection of recent investigations undertaken by the agency into incidents occurring in different contexts worldwide. In parallel, the exhibition outlines five key concepts that raise related historical, theoretical and technological questions. Continuing to be explored in an accompanying series of public seminars, these investigations and propositions add up to a  Short Course in Forensic Architecture. Grounded in the use of architecture as an analytic device, Forensic Architecture has in recent years developed a host of new evidentiary methods that respond to our changing media landscape – exemplified in the widespread availability of digital recording equipment, satellite imaging and platforms for data sharing – and propose new modes of open-source, citizen-led evidence gathering and activism. Forensic Architecture has worked closely with communities affected by acts of social and political violence, alongside NGOs, human rights groups, activists, and media organisations. Their investigations have provided decisive evidence in a number of legal cases, and contested accounts given by state authorities, leading to military, parliamentary and UN inquiries.