The article analyzes the experience of teaching at the Moscow University of the Ministry of internal Affairs of Russia named after V. Ya. Kikot experimental practice-oriented discipline "activity of operational criminal investigation officer in the course of pre-trial proceedings in criminal cases". The main emphasis is on classroom practical classes, independent work, examination. Considered the most typical training storylines for the investigation of criminal cases related to thefts, robberies, robberies and other, which the cadets under the guidance of teachers practice various skills, including drafting procedural documents. The article describes the features of the joint practical training of teachers of the Department of preliminary investigation and the Department of operational-investigative activities, as well as the subsequent acceptance of the exam in the form of exercises, which was tested in the course of previously repeated interuniversity operational tactical exercises, using complex forensic polygons.