On 20 September 1947 in Sieradz, the Municipal Court in Sieradz, Criminal Section, with Judge T. Obertyński (MA) presiding and with the participation of court reporter J. Kwapisz, heard the person named below as an unsworn witness. Having been advised of the criminal liability for making false declarations and of the wording of Article 107 of the Code of Criminal Procedure, the witness testified as follows:
| Name and surname | Jan Piotrowski |
| Age | 34 |
| Parents’ names | Lucjusz and Maria |
| Place of residence | Sieradz, Kościuszki Street 9 |
| Occupation | accountant in the “Społem” department in Sieradz |
| Religious affiliation | Roman Catholic |
| Relationship to the parties | none |
From the end of January 1943 until mid-April 1943 I was in the camp in Birkenau, and then I was transported to the Auschwitz I camp, where I stayed until August 1943, from where I was transported to Hamburg, also to a concentration camp.
From the list of former members of the armed crew of the former concentration camp at Auschwitz I didn’t know anyone but Hans Aumeier. My fellow prisoners pointed him out to me as the Lagerführer [camp leader] and told me his name. I didn’t come into direct contact with him. He had the reputation among the prisoners of being the “terror of Auschwitz”, but I don’t know the specific facts of his criminal activity.
In addition, I have no information in the case presented.
The report was read out and concluded.