Łukaszkiewicz conducted his research at the time when virtually nothing was known about the scale and the exact way in which these atrocities were committed. He published his first findings already in 1946 along with the results of legal and medical inquiries, sworn affidavits of land surveyor T. Trautsolt, Dr H. Wakulicz, the evidence collected by railway workers but most importantly, the testimonies of former prisoners of Treblinka extermination camp who managed to survive the revolt and took part in the Commission's forensic work. Łukaszkiewicz examined the selected graves exhumed at Treblinka IArbeitslager. His estimate of the total number of the victims of gassing was based on the already proven record of 156 transports with an average of 5,000 prisoners each. Many published results of his enquiries are still considered paramount to the understanding of the Final Solution, even though some specifics have also been revised by modern science. Łukaszkiewicz is being quoted by the Encyclopedia of the Holocaust, the Britannica Polish edition, and the Polish Nowa Encyklopedia Powszechna PWN among others. Also, many professional historians including Wolfgang Scheffler and Czesław Rajca used his publications as the source of pertinent data.
Challenges
Łukaszkiewicz was the first Polish researcher to study the 1943 massacre committed at the Majdanek concentration camp under the codename Operation Erntefest. The more substantial revisions to his early research have been made only in the 1960s and 1970s, when the first testimonies of the Holocaust perpetrators appeared in German court documents during trials. Although his research was further revised by Holocaust scholars, Łukaszkiewicz was the first Polish scientist to challenge the evidence for the prosecution submitted in 1946 by the Soviets at the International Military Tribunal at Nuremberg. The completely unrealistic estimate of 1.5 million people murdered at the Majdanek concentration camp was based on the theoretical capacity of Majdanek coke-fueled crematoria. This number claimed by the Soviet-led Special Commission was lowered by Łukaszkiewicz by over one million victims based on his own evidence, down to 360,000 which – at that particular time – constituted a challenge requiring a substantial amount of personal integrity.
Selected works
"Obóz zagłady Treblinka" by Zdzisław Łukaszkiewicz, a thirty-page article in: Biuletyn Głównej Komisji Badania Zbrodni Hitlerowskich w Polsce, I, 1946.
Obóz straceń w Treblince by Zdzisław Łukaszkiewicz, published by Państwowy Instytut Wydawniczy, 1946 in Polish, 5 editions,
Hitlerowskie obozy koncentracyjne by Zdzisław Łukaszkiewicz, published by Polski Instytut Spraw Międzynarodowych, 1955 in Polish, 3 editions
Regulamin czynności sądów wojewódzkich i powiatowych w sprawach cywilnych i karnych by Z. Łukaszkiewicz with Tadeusz Górski; Janusz Pietrzykowski , 1 edition published in 1956 in Polish
Chuligaństwo by Z. Łukaszkiewicz with J. Sawicki, G. Auscaler, A. Pawełczyńska, T. Cyprian. Ed. by J. Sawicki, 1 edition published in 1956 in Polish
Obóz koncentracyjny i zagłady Majdanek by Zdzisław Łukaszkiewicz, Biuletyn Głównej Komisji Badania Zbrodni Niemieckich” 1948, vol. 4, in Polish,