In Warsaw, on 18 March 1947, Helina Wereńko, member of the District Commission for the Investigation of German Crimes in Warsaw, proceeding pursuant to the Decree of 10 November 1945 regarding the Main Commission and District Commissions for the Investigation of German Crimes in Poland (Journal of Laws of the Republic of Poland No. 51, item 293), interviewed the below-mentioned as an unsworn witness. Having been advised of the criminal liability for making false declarations, and of the wording of Articles 107 and 115 of the Code of Criminal Procedure, the witness testified as follows:
| Name and surname | Katarzyna Krystyna Puczyńska, née Kaczmarska |
| Parents’ first names | Filip and Paulina, née Bochenek |
| Date of birth | 6 January 1909 |
| Education | Pharmaceutical Faculty, University of Warsaw |
| Religious affiliation | Roman Catholic |
| Place of residence | Warsaw-Żoliborz, Dygasińskiego Street 48 |
| Citizenship and nationality | Polish |
| Occupation | Druggist |
| Marital status | Widow |
During the Warsaw Uprising I lived in Warsaw, at Płocka Street 2c. From the moment when the uprising broke out, our building was on the German side; there were no battles in the immediate vicinity. On 7 August 1944, a unit of Ukrainian soldiers came to our building and called for the residents to leave the building immediately. Once we had taken bundles of belongings prepared in advance, we went outside in front of the building, where the soldiers ordered us to hand over gold objects and watches, following which they arranged us in lines and led us in the direction of Wolska Street. Our group numbered approximately 50 people. When walking along Płocka Street, I noticed that all the buildings we passed were already empty and partially burnt-out.
We were stopped at the corner of Wolska Street, and split into men and women. When standing there, I saw how half-dressed men, watched over by Germans, were carrying partially charred corpses by handcart out of the building adjacent to the Ursus factory, from the Wolska Street side, and dumping them into a pit that had been dug on the corner of Płocka and Wolska streets on the even-numbered side.
The men were led to Działdowska Street, at the corner of Wolska Street, while our group of women were taken in front of the Church of St. Adalbert. On the way, I saw corpses lying on Wolska Street, mainly in a state of decomposition. German cars were driving around. A group of younger women were separated off in front of the church and directed into the church, while the remaining women were spurred along the road towards Pruszków. I was in the church, where there were already crowds of people, mainly women and children. I saw few men, mainly elderly.
At about 3.00 p.m., feeling unwell, I went out onto the steps of the church, in front of which there were also groups of civilians. I heard repeating shots from machine guns, and saw a group of men huddled beneath the fence at Sokołowska Street, from the side of the church. I tried not to look at the execution. I could hear shots for about two hours. I couldn’t see who was shooting in the crowd, and I can’t say how many people were shot. I saw from afar a mass of bodies lying by the fence around the church premises on the Sokołowska Street side.
On the next day, 8 August 1944, the civilians were chased out of the church by German soldiers (I don’t know what kind of weapons) and delivered under the escort of soldiers to the transit camp in Pruszków.
At this point the report was concluded and read out.