Warsaw, 22 March 1948. A member of the District Commission for the Investigation of German Crimes in Warsaw, Judge Halina Wereńko, heard the person named below as an unsworn witness. Having been advised of the criminal liability for making false declarations and of the obligation to tell the truth, the witness testified as follows:
| Name and surname | Stefan Kobrzyński |
| Parents’ names | Franciszek and Aniela, née Janik |
| Date of birth | 20 September 1914, in Warsaw |
| Religious affiliation | Roman Catholic |
| Education | secondary |
| Place of residence | Warsaw, Mokotowska Street 24, Stołeczny Komitet PPS [Warsaw Committee of the Polish Socialist Party] |
| Occupation | Secretary of the Warsaw Committee of the Polish Socialist Party |
On the night of 11 January 1941, I was arrested by the Gestapo in Warsaw. I was brought to the Pawiak Prison, where I met Stanisław Dubois, whom I had known before the war as a socialist activist. At Pawiak, he was known under the name of Stanisław Dębski. I found out that he was sent to the camp in Auschwitz and then transported back to Pawiak, because the Gestapo discovered his real name.
On 31 January 1941, I was transported to the camp in Auschwitz. In the middle of May (I don’t remember the exact date), Stanisław Dubois was transported to the camp. On 21 or 22 August 1941, on Friday or Saturday (I don’t remember the exact date), during the morning roll call, he was called to the Political Department. Prisoners were being executed daily at that time, and prisoners’ files were looked through at the Political Department. We were worried about Dubois’s fate. However, he came back and told me and Adam Kuryłowicz that at the Political Department, Aumeier himself gave him a parcel sent by Thugutt from Stockholm. Prisoners were not allowed to receive parcels around that time.
On 24 August 1941, on Monday (I don’t remember the exact date), the news about Dubois being shot spread around the camp. Grabner and a translator had taken Dubois from his workplace (Betoncollonne) and escorted him to block 11. That’s where he was shot by Palitzsch.
I heard about Dubois being taken from his workplace from a prisoner, now dead, Stanisław Szczypawka, who worked with Dubois in the concrete works column.
I learned about the execution of Dubois from prisoner Eugeniusz Obojski (current place of residence unknown), who was employed at carrying the corpses.
Adam Kuryłowicz saw his corpse in a box by the rewir [hospital], where the bodies were kept.
At this the report was concluded and read out.