The research data was collected using these main sources:
a) Criminal codes and criminal prosecution codes of Lithuania, other Post-Soviet Republics, USSR, other laws (especially for constructing the “MAP NO 2: Criminal law reform”).
b) Archival data – The Foundation No 79 (Investigation Department under the Ministry of the Interior ) of the Lithuanian State Modern Archives. Most of these documents were never analyzed before in Lithuanian historiography. They reflect the transformation of the Lithuanian criminal justice system from within, contain such documents as the official regulations and orders, correspondence between different institutions (police, courts, prosecutors, Ministry of Interior) and Lithuanian parliament and government.
c) Statistical data, gathered from the official State Data Agency of Lithuania, the open-source websites.
d) The analysis of Lithuanian press – especially newspapers “Lietuvos Rytas”, “Auksinė varpa” – helped to reconstruct the public criminological discourse.
e) Data in the Networks and Connections maps was gathered from interviews with the Lithuanian officers of the criminal prosecution, using publicly available websites https://eteismai.lt/; http://liteko.teismai.lt/ – but a lot of the public data (such as the criminal files) were unavailable due to the data protection laws. We also used the memoirs or other written witnesses of the former police officers, judges and prosecutors (such as Eugenijus Palskys [1], Alfredas Vilbikas[2]).
[1] E. Palskys, ‘Lietuvos Respublikos baudžiamojo proceso įstatymų raida 1990-1994 metais’, in: Kriminalinė Justicija. Mokslo darbai (Vilnius, 1995), p. 94.
[2] A. Vilbikas, Šiauliai ir policija Lietuvos įvykiuose (1990-2010), (Kaunas, 2019).