Abstract: This article explores the problems associated with the prosecutor’s response to violation of law committed by the bodies of inquiry and preliminary investigation in pretrial investigation of a criminal case. The conclusion is made on impossibility of introducing the prosecutor’s requirements on elimination of such violations prior to initiation of criminal investigation. The analysis of legislation demonstrates that such act of prosecutorial supervision as representation on prevention of legal violation cannot be applied in the criminal procedural sphere, although it is frequently applied in practice as demonstrated by the statistics. The author draws the conclusion on introducing certain amendments to the Criminal Procedural Code of the Russian Federation, as well as to the Federal Law “On the Prosecutor’s Office of the Russian Federation”. It is suggested to exclude the requirement on prevention of legal violations, replacing it with the more universal concept, which in terms of its consolidation in the Criminal Procedural Code of the Russian Federation can be put forth not only in a specific criminal case, but also serve other purposes: elimination of causes and conditions contributing to violation of law, bringing to justice the official violating the law, elimination of the group of violations of procedural law, determined by the prosecutor in various cases.