In 1951 he ended up in the 10th Department, where he was one of the leading officers. The 10th Department was responsible for handling the Party members themselves. He received orders personally from the First Secretary of the Polish United Workers' Party Bolesław Bierut, and arrested such notable people as politicians Władysław Gomułka and Marian Spychalski, General Michał Rola-Żymierski, and Cardinal Stefan Wyszyński.
In 1951 he found himself in the 10th Department, where he was one of the top-ranking officials. The 10th Department handled Party members directly. He received direct instructions from Bolesław Bierut, the First Secretary of the Polish United Workers' Party, and arrested prominent figures such as politicians Władysław Gomułka and Marian Spychalski, General Michał Rola-Żymierski, and Cardinal Stefan Wyszyński.