The „gypsy camp“ at Lety was established on the site of a former disciplinary labour camp. The camp's capacity was increased so that it was able to take up to 600 prisoners, but that number, too, was soon exceeded, since during August 1942 over 1 100 men, women and children were interned in the camp. The camp was not equipped with the necessary sanitation and other facilities for such a large number of people. Moreover, until August 1942 only men had been imprisoned here. From August 1942 on, women and children had to live here too, in totally inadequate conditions. After the influx in August 1942, subsequent new arrivals were mostly individuals or families. The number of prisoners thus did not continue to rise, but the unsatisfactory conditions in the camp remained practically unchanged.
In all, 1 309 people were interned in the camp, of whom 326 survived their internment. A quarter of the prisoners were released or escaped. The remaining prisoners were transported to the concentration camp at Auschwitz.
Two mass transports took place. The first was a transport of „asocials“ which set out for the Auschwitz I concentration camp on the 3rd of December 1942, numbering 16 men and 78 women. The second transport marked the practical closing of the camp, since 417 prisoners were taken to the Auschwitz II - Birkenau camp. While the first transport took place on the basis of a decree on crime prevention, the second took place on the basis of Himmler's decree from the 16th of December 1942 (link in Czech), ordering the transport of all Roma to the concentration camp at Auschwitz.
The remaining 198 prisoners were transferred to the „gypsy camp“ at Hodonín u Kunštátu or to collection camps in Prague and Pardubice. Only a few of them were released.