Keyword: «judicial errors»

The authors consider the types of law enforcement errors standing out in the legal literature, show their impact on the quality of the preliminary investigation. Having studied individual decisions of prosecutors on the return of criminal cases for additional investigation, they determine the typical errors serving as a base for the return of criminal cases for additional investigation. The concepts of “significant violations of the criminal procedural law» and «incompleteness of the preliminary investigation» which are used to return criminal cases to a new investigation are analyzed from a historical point of view.