Starting from mid 1944–1945 the Main Information Directorate carried out broad purges in the Polish forces by applying similar Stalinist methods, like false arrests, torture and show trials.

During the war years he was working in the secret Polish Workers' Party paper and copy shop (Gwardzisty), where in 1942 he was arrested by Gestapo and sent to one of the concentration camps.

But three years later he became the head of military intelligence which was then Zarząd II Sztabu Generalnego Wojska Polskiego (2nd Directorate of General Staff of the Polish Army).

Again he was moved in 1981, this time to the civilian branches of secret service, he became minister and took over the Ministry of Internal Affairs (Ministerstwo Spraw Wewnętrznych) or MSW; with this position Kiszczak had the notorious Służba Bezpieczeństwa (SB) under his control.

There are speculations that gen. Edmund Buła had ordered to copy lists of WSW Informants and agents and sent it to Moscow, to KGB's Third Main Directorate, and some of them to GRU.

Almost all of the operational documents from those years have been burned, (in 1988 11 tons and latter another 5) all of this actions were controlled by general Bula and supervised by Colonel Mieczysław Kacprzyk.

The results of the commission have been classified and have been hidden from the general public till 1999, when one of the major newspapers (Gazeta Wyborcza) had printed pieces of it.

During the beginning Internal Military Service was based on two main wings: first was operational counterintelligence, and second for investigation and safety tasks.