The Office of Search and Identification looks for unidentified burial sites of the soldiers struggling for independence and victims of totalitarian oppression from the period between 8 November 1917 and 31 July 1990. It restores the memory about the people who have been condemned to oblivion by the communist authorities. A team of historians, archeologists, forensic experts and geneticists conducts research and exhumations in many places in Poland and abroad.