Since February 1945, the camp had served the Soviet
NKVD and then the Polish
Ministry of Public Security (UB) as a prison camp for the so-called "enemies of the nation" (Polish:
wrogowie narodu). Some of them were German military POWs who were members of the
Waffen-SS that were imprisoned separately from the rest. The prisoners were made up of Nazi collaborators from all over Poland. Most were local Germans from German
Upper Silesia, Germans from
Polish Upper Silesia, and
Silesian civilians from Jaworzno, the nearby
Chrzanów and elsewhere. Prisoners included women and children. There were also ethnic Poles who were arrested for their opposition to
Stalinism, including members of the Polish non-communist resistance organizations AK and
BCh and later the anti-communist organization
WiN. The camp for Germans was run until 1949, when the last of them were allowed to leave and emigrate from their home region to
post-war Germany. In April 1945, the camp was renamed to the "Central Labor Camp" (COP) as part of a centralized effort to create COPs. ) The German inscription "
Arbeit macht frei" ("Work makes free") was replaced by Polish "
Praca uszlachetnia człowieka" ("Work enables man"). The prisoners mostly worked on the construction site of the Jaworzno power plant or in nearby factories and mines. All of them were imprisoned in separate subcamps and were guarded by more than 300 soldiers and officers from the
Internal Security Corps. The soldiers were aided by about a dozen civilian personnel. One of the commandants (from 1949), was a Polish Jew and communist named
Salomon Morel, who had gained a reputation for cruelty in the
Zgoda labour camp in Świętochłowice. Others included Włodzimierz Staniszewski, Stanisław Kwiatkowski and Teofil Hazelmajer who all answering to Jakub Hammerschmidt, later known as Jakub Halicki. Soviet NKVD officer Ivan Mordasov was also commandant of the camp. There were two satellite subcamps located at Chrusty and
Libiąż. A separate subcamp existed for the ethnic
Lemko and
Ukrainian prisoners. On April 23, 1947, by a decree of the
Political Bureau of the
Central Committee of the
Polish Workers' Party, COP Jaworzno was selected for the detention of civilians during the
Operation Vistula deportation campaign. The first transportation of 17 prisoners from
Sanok reached the special subcamp of Jaworzno on May 5 and the number of these prisoners eventually came 4,000, including over 700 women and children. The vast majority of them arrived in 1947. Most of them were people suspected of being sympathetic towards the rebels of the
Ukrainian Insurgent Army (UPA) and those otherwise selected from the Operation Vistula transports. This included more than 100 Lemko intelligentsia and 25
Greek Catholic priests. The Lemko and Ukrainian prisoners were gradually released from spring of 1948 until spring of 1949 when the last of them left Jaworzno. Most of them were deported to new places of settlement or freed and allowed to return to their homes. Several hundred were sent to military prisons. At least 161 died in the camp. According to incomplete official statistics from the period, 1,535 people died at COP Jaworzno between 1945 and 1947. 972 of these prisoners died of a
typhus epidemic in the overcrowded camp out of at least 6,140 who died during this period in all camps and prisons in Poland. Contemporary figures are much higher. According to research conducted by Polish historians on the data released by the prison services in 1993, the list of prisoners who died at COP Jaworzno and its affiliations between 1945 and 1956 consists of 6,987 names, which is a figure much greater than in any other Polish detention centre. In comparison, approximately 2,915 prisoners died at the second most lethal work camp in Stalinist Poland, the
Central Labour Camp in Potulice, mainly from typhus and dysentery. The victims were mostly the German
Volksdeutsche. After Operation Vistula was concluded in 1949, the camp continued to be used as a prison for Polish
political prisoners. Between 1951 and 1956, it was turned into the "progressive prison for adolescents" () under the age of 21. Some 15,000 people passed through it as inmates, imprisoned in better conditions than the previous batches of prisoners. Their forced labour was accompanied by indoctrination and education. The camp's final closure took place during the wave of general
post-Stalinist reforms, following a prison revolt in 1955, a riot sparked by an incident of an escaping prisoner that was killed. ==Aftermath==