Improper notification of defence lawyer on date, time and place of investigations or other proceedings as one of the ways to eliminate them from the proceedings

Introduction: the article discusses the challenging issue on regulatory reglamentation of notification of defence lawyer on date, time and place of investigations through the prism of not providing for persons under investigation the right to receive qualified legal assistance. Materials and Methods: in the study, the materials were websites of professional organizations in advocacy. The author examined case study materials, materials of disciplinary proceedings of professional organizations in advocacy, scholarly writings by Russian scholars-processualists. Methodology of the study were dialectical method of scientific knowledge, analysis, synthesis, induction, deduction, description, logical, system and structural methods, and special method. Results: the author has established that the norms regulating the participation of defense layer in criminal case need clear legal establishment of notification procedure of notification of defence lawyer on date, time and place of investigational or other proceedings. Discussion and Conclusions: the author suggests recommendations on gap elimination in the procedure of the notification of defence lawyer on date, time, and place of investigational or other proceedings involving the defendant to minimize disputes in criminal cases.