This article presents an assessment of the involvement and impact of the activities of the public safety apparatus in Warmia and Masuria during the “election campaign” and elections to the Sejm of the People’s Republic of Poland on 26 October 1952. It focuses on the previously unpublished post-election report of Lt. Franciszek Szlachcic, head of the Provincial Public Security Office in Olsztyn, which was prepared for the Ministry of Public Security in Warsaw. The findings and statistical data, as well as the opinions and conclusions relating to the operational work of the coercion apparatus, represent valuable material for research on the forms and scale of repressions against the inhabitants of the then Olsztyn voivodeship during the Stalinist period.