Marek J. Chodakiewicz, Piotr Gontarczyk and Leszek Zebrowski in their book "Tajne oblicze GL-AL, PPR: Dokumenty" criticized Madajczyk, writing that he had been "at the [Communist] party's disposal" in reference to his description of relations of Polish Workers Party (PPR) and Comintern during World War II. Polish-American historian Anna Cienciala, in a review of this work, commented: ""Of course, these [Madajczyk's] statements camouflage the realities of the PPR-Comintern relationship, but they may have been the price agreed with the censor for publishing the documents in the first place."" Cienciala further says that with the liberalization of Poland and the fall of communism, in 1989 Madajczyk wrote an extensive work on Soviet massacre of Polish POWs in Katyn. Hirschfeld noted that during the Cold War, Madajczyk was a vocal supporter of scholarly cooperation, breaching the Iron Curtain.