The study aimed to analyse the European experience of investigating criminal offences in the field of official activity and the peculiarities of its adaptation to the Ukrainian context. The study employed a combination of case study methods, formal legal analysis, content analysis, comparative legal analysis, contextual analysis and PESTEL (political, economic, social, technological, environmental and legal) analysis. The analysis of international experience was conducted in the context of European Union member states that have successfully established effective systems for investigating crimes in the public sector, including Germany, France and Poland. The study found that the approaches and strategies implemented in Ukraine have several shortcomings that significantly reduce the effectiveness of criminal investigations, including a widening gap between the number of registered offences and the number of notices of suspicion served. The reason for the identified discrepancy is the lack of coordination between the subjects of criminal investigations, as well as the lack of transparency of the investigation process and accountability of the parties involved. To overcome these shortcomings, the study recommended adapting the German experience in the field of round-the-clock interaction between the subjects of a criminal investigation, which guarantees quick access to information and prompt permission to conduct investigative actions. Adaptation of the French experience in conducting investigations was recommended to ensure cross-control of the investigation subjects and improve the efficiency of their work. The Polish experience of utilizing electronic resources in criminal proceedings was recommended to enhance interdisciplinary cooperation among the parties involved in the investigation. Adopting the best international practices can be used to enhance the detection statistics of criminal offences and increase public confidence in the country’s system for investigating and prosecuting criminal misconduct in office.