Official documents mention that Lochau subcamp was opened on 7th April 1945, thus it was only in operation for a short period of time until it was liberated on 27th April. However, according to witness statements cited by Dachau KZ blog, there were prisoners on the site in March 1945. It was located in an old brewery, specifically in a large hall on the building's upper floor. There was never more than 20 prisoners, most of them being Yugoslavs, Slovenes, Poles and Germans. They were put to work setting up a laboratory established in Block 5, Room 4. The aim of the research was to try and obtain a blood-stilling agent called Polygal and produce it in tablet form and the prisoners were made to transport laboratory equipment with some working as carpenters to set up a working room in which pectin was extracted from beet residues. There was no barbed wire and the prisoners were able to move around to some extent, enabling limited contact with Polish forced labourers who provided them with extra food.

​

Lochau was commanded by 39-year-old doctor Kurt Friedrich Plötner, who also held the rank of SS -Sturnbannführer. It was guarded by five SS men, all but one of whom fled as the allies approached. In the last few days of the camp's operation, a number of Yugoslavian prisoners escaped to Schlacters where they joined a resistance group. Plötner hid the laboratory equipment in the nearby village and then fled, eventually being arrested by French troops. The camp itself was liberated on either 30th April or 1st May 1945.