On 17 December 1945, in Radom, Kazimierz Borys, Investigating Judge from the Second District of the District Court in Radom, based in Radom, interviewed the person named below as an unsworn witness. Having been advised of the criminal liability for making false declarations, the witness testified as follows:
| Name and surname | Maria Kozerska |
| Age | 45 years old |
| Names of parents | Henryk and Marcela |
| Place of residence | Radom, Podwalna Street 4a |
| Occupation | clerk |
| Religious affiliation | Roman Catholic |
| Criminal record | none |
| Relationship to the parties | none |
| On 12 October, my husband | Henryk Winczewski, born on 19 January 1919, a revenue officer, |
and his brother Jan Bogusław Winczewski, born in 1916 (I don’t know the exact date), a Polish Army officer, were executed by the Germans on the gallows in Rożki.
On 15 October 1942, on the gallows erected beside the Warsaw road in Radom, the Germans executed Stanisława Winczewska, the mother of the men mentioned above, and Jan Bogusław Winczewski’s wife, Ada Winczewska, née Mayer. I don’t know how old they were. At the time of the execution Ada Winczewska was pregnant.
On 14 October 1942, my nephew, Tadeusz Kozerski, born on 11 July 1917 in Mińsk, a student at the Mining Academy, employed during the occupation at the firm "Bata", was executed on the gallows set up near the Arms Factory in Radom.
I was at the execution site beside the Warsaw road. Among the people hanged by the Germans I recognized Stanisława Winczewska, Ada Winczewska and Bretsznajder.
I don’t know where the bodies were buried and I don’t know why the people mentioned above were executed. I didn’t see a board near the gallows.
After the people mentioned above were executed the police directorate notified me of the death of Henryk Winczewski and Tadeusz Kozerski, who had been living at my place. Shortly afterward, the notifications I received were reclaimed by the same gendarme who had brought them to me.
Having been shown photographs of the people executed on the gallows in Rożki and in Radom, the witness testified as follows:
In the photograph of the people executed beside the Warsaw road I recognize Stanisława Winczewska, first from the left or last from the right, and Ada Winczewska, second from the left or last but one from the right.
In the photographs "Rożki I" and "Rożki II" I recognize Henryk Winczewski. He is fourth from the left. The man fifth from the left looks like Jan Bogusław Winczewski.
In the photograph presented to me I can’t recognize Tadeusz Kozerski.
In the photograph of the people executed next to the Warsaw road I also recognize Bretsznajderówna. She is fifth from the left or sixth from the right.