Our study presents potential guideline policies on how to utilize the mass emitted sources of the law enforcement system in the interwar period. The paper is divided into three main sections, of which the first deals with the organization of the group, the resources and the database in progress. The second part of the work presents one of the group’s research directions, which focuses on using anthropometric methods. The last great chapter contains source based criminal statistical and social examination from the resident individuals of Debrecen. Finally, the overview gives information about future plans and prospects. In front of the public, the work group showed itself in two scientific presentations, which, together with this study, is considered as a foundation.

The collectivization took place in the socialist era, its aim was to completely transform the rural society and economy according to the Soviet model. During the process, the private peasant farms were violently liquidated, and collective farms were established. The collectivization process in Seklerland started in 1947/1948 and went on until 1962. This long-term process manifested in its complexity, and it generated intense emotions and conflicts, as well as pretended agreement, silent oppositions, uncertainty and fears. In my study, I non-exhaustively mention some major events from the collectivization period, and I go into detail about the people’s hidden resistance and struggle against the power, which happened in Seklerland in the period in question.

The Méliusz Juhász Péter Library was created by the incorporation of the Debrecen City Library and the Méliusz Juhász Péter County Library in 2013, although it has already been performing local history activities via its legal predecessors for more than sixty years. The Local History- and Photo Collection, operating inside the new building, serves the research needs related to settlements of Bihar county and Hajdú-Bihar county. It collects and processes the county- and settlement monographs, local history bibliographies, volume studies, yearbooks, maps, newspapers, photographs, small prints. It performs local knowledge media monitoring, and builds electronic database from its material. The library organizes local-related exhibitions, book presentations, local history lectures and gives opportunities for local history researchers to present their research. During its activities, it diversely cooperates with educational and cultural institutions in Hajdú-Bihar County. The collection’s material can be used locally by registered and daily reader’s ticket owners.