On 15 September 1947 in Kraków, Municipal Judge Dr. Henryk Gawadzki, a member of the Kraków District Commission for the Investigation of German Crimes in Poland, on the written motion of the first prosecutor of the Supreme National Tribunal, dated 25 April 1947 (file no. NTN 719/47), interviewed as a witness, in accordance with the provisions of and procedure provided for under the Decree of 10 November 1945 (Journal of Laws of the Republic of Poland No. 51, item 293), in relation to art. 254, 107, and 115 of the Code of Criminal Procedure, the person specified below, a former prisoner of the Auschwitz concentration camp, who testified as follows:
| Name and surname | Stanisław Kłodziński |
| Age | 29 |
| Religious affiliation | Roman Catholic |
| Citizenship and nationality | Polish |
| Occupation | medical doctor |
| Place of residence | Szpitalna Street 34, flat 6, Kraków |
| Testifies freely |
I was interned at the Auschwitz camp between 12 August 1942 and 18 January 1945 as Polish political prisoner 20019. In the course of the evacuation of the camp, I was moved to the Mauthausen camp. From the first days of January 1942 until the end of my time at Auschwitz, I worked at the main camp, in the hospital at block 20, initially as an orderly and then as a doctor.
I clearly remember and I am stating decisively the following fact: after Liebenschel took over, there were two selections for gassing, each carried out in a different way, i.e. those designated for gassing, both from the hospital and the camp, were first sent to block 10, and from there, the prisoners were successively transported in vans to Birkenau. There were no systematic selections over that period.
At that the report was concluded and it was signed after it was read out.