Warsaw, 10 March 1946. Investigating Judge Alicja Germasz, delegated to the Commission for the Investigation of German Crimes, heard the person named below as a witness. Having been advised of the criminal liability for making false declarations and of the significance of the oath, the witness was sworn and testified as follows:
| Name and surname | Roman Pietruszajtys |
| Date of birth | 21 April 1915 |
| Names of parents | Julian and Helena |
| Occupation | student at the Warsaw University of Technology |
| Place of residence | Warsaw, aleja Na Skarpie 69, flat 8 |
| Religious affiliation | Roman Catholic |
| Criminal record | none |
On 8 August 1944, when I was forced out of the house at Trębacka Street 5, the house where I lived and which had been taken up by the Germans, I found myself in the courtyard of some house (I don’t remember its number) in Ossolińskich Street. All the residents from the houses on the odd-numbered side of Trębacka Street were gathered there by the Germans.
Next I was taken to the street together with other people, and we were led across Żelaznej Bramy Square. At the corner of Ptasia and Zimna streets, the German gendarmes separated out all the men and ordered us to strip to the waist. I was assigned to a group of men who were ordered to fill the bomb crater in Zimna Street and then build barricades in Ptasia and Zimna streets. In the course of working I observed the following facts: at one point a shot was fired from the rooftop of Hala Mirowska [the market hall], and one of the gendarmes from the barricade at the exit of Zimna Street got wounded. Then a dozen or so Polish men were placed in front of the barricade and the gendarmes retreated from it under the cover of this human shield. Then a dozen or so Polish men were tied together with a wire and placed in a circle in Mirowski Square. Four gendarmes stood in the middle of the circle and, bent in half and propping their guns against the arms of the standing Poles, they were shooting in the direction of the roof of Hala Mirowska.
Later I saw how a dozen or so people were chosen from our group of workers, tied together and marched in the direction of Żelaznej Bramy Square in front of firing tanks.
At the corner of Ptasia and Zimna streets, in burnt-out shops, I saw a large number (about several dozen I think) of burning bodies of men, piled one upon another. All of them were stripped to the waist.
In the late evening I was released from work and joined to a group of women, with whom I went to the church in Wola. Then I was marched to the railway station, from where I was deported to Pruszków.
The report was read out.