Mieczysław Zub (10 October 1953 – 29 September 1985)[1] was a Polish serial killer who killed 4 women in Silesian Voivodeship.
At the beginning of his criminal activity, Zub was a policeman by profession; he would wear his uniform while committing his crimes, which made him feel unpunished.
[2] In the 1970s, he made several more attacks on women while disguised as a policeman, but he was soon dismissed for disciplinary offences (which indicated doubts from his superiors towards Zub).
In March 1983, when he raped another victim he lost his pass, entitling him to enter the steelworks where he found a job.
[3] Zub's many years of impunity according to some press reports can be explained by the fact that the militia focused on tracking down another serial killer at the time - Joachim Knychała.