This study has explored the criminal cases involving Jews heard in Krakow District Court in the period 1939-1944. Among those documents, there are also 23 denunciations from different periods submitted to German authorities, of social, economic, racial, and political nature. There are also cases linked to blackmailing Jews. The article examined the most important criminal cases involving Jews, specificity the work of the court regarding the individual matters as following: seizure of property; acts of violence; forgery and theft of documents. The study has found the significant differences between the criminal cases conducted by the court before and after the Reinhardt Action.