Filchakov, A. V. 2021. “The State of Scientific Development of the Problem of Operational and Investigative Counteraction by Criminal Police Units to the Promotion of Criminally Illegal Activities of an Organized Group or Criminal Organization”. Bulletin of Kharkiv National University of Internal Affairs 95 (4), 230-42. https://doi.org/10.32631/v.2021.4.20.