The study deals with the events related to the last wave of the Nazi courtmartial hearings in Brno in the other half of April 1945 that meant a death penalty for 20 Czech inhabitants of the city. The text also contains a brief genesis of the Nazi courts during the protectorate, taking into account the court in Brno, and the analysis of the post-war investigation of April executions and the trials with the representatives of the court-martials who were members of the Nazi security machinery in 1945–1947.