Relevance. A lawyer, not being a subject of proof in criminal proceedings, nevertheless, is an active participant in the proof process, which he carries out throughout his activities to protect his client from suspicion or formed and put forward an accusatory thesis. At the same time, the current situation of "double protection" significantly hinders the participation of a lawyer in proving innocence or lesser guilt in comparison with the accusatory thesis put forward, and at the same time establishes an obstacle to the implementation of the provisions enshrined in Article 48 of the Constitution of the Russian Federation, which enshrines the right of everyone to receive qualified legal assistance. The situation of "double protection" is one of the most negative factors in advocacy. In order to avoid the occurrence of a "double protection" situation, the author proposes an algorithm of actions when entering the process as a defender.Objective: to develop an algorithm for entering the process in order to avoid a situation of "double protection".The purpose of the study is to continue the research of advocacy in criminal proceedings, refuting the arguments of the prosecution and proving the innocence or lesser guilt of the defendant.Methodology. The methodological basis of the research was the universal dialectical method of cognition of socio-legal phenomena, general scientific research methods (analysis and synthesis, deduction and induction, system-structural and others). In addition, private scientific methods of cognition were used logical-formal and system analysis.The results of the study are both theoretical and applied in nature, and have elements of scientific novelty. The author considers the issues of the lawyer's entry into the criminal process by appointment, proposes an algorithm for the lawyer's actions in order to avoid possible violations and the emergence of a situation of "double protection".Conclusions. The discussion of the identified problems will allow us to develop solutions to eliminate the identified gaps in the implementation of protection in criminal proceedings, protect lawyers from possible violations of internal corporate regulations.