Władysław Trzaska (colonel)
Władysław Trzaska - Colonel Milicji Obywatelska. In the 1960s he was deputy head of the Criminal Service Department of the MO Headquarters in Warsaw (then he published in the journal "Problemy Kryminalistyki" 44-45 / 1963). He became the deputy head (Colonel Stanisław Dereń) appointed on September 13, 1971, the operational and investigative group Kryptonim "Bieszczady", to investigate the murder of Jan Gerhard. In the 1980s he was the deputy head of the Central Commission for Combating Speculation. Together with Grzegorz Fedorowski, he was the author of the book entitled Before his sentence (1973). He was a consultant in the production of the television series Droga (1973, along with Colonel Włodzimierz Kolanko) and the film No ma mocnych. wiki