The paper tackles the still to be fully explored forced isolation centres functioning beyond the democratic system of justice, serving the so-called re-education or quite simply isolation, and ultimately elimination, of political opponents or those sharing different worldviews to a particular political regime. The first section presents information concerning the Croatian Nazi extermination camp at Jasenovac, which was established during the existence of the so-called Independent State of Croatia during the Second World War. In the second part there is a description of the so-called re-education camps, intended for Josip Broz Tito’s opponents, establishing on the Croatian island of Goli Otok. The third part concerns issues related to the functioning of isolation camps of unspecified nature (and mainly identified as camps for military and civilian prisoners of war) in Kosovan territory. These camps were run by functionaries of the Kosovo Liberation Army.