The necessity of correction understanding of the meaning of forensic tactics due to the introduction of undercover investigators Institute (search) action in criminal procedural law of Ukraine. Deals with the results of recent research to determine the content of forensic tactics. Different approaches to the definition of operational tactics. Taking into account the results of the latest research the authors’ definition of operational tactics. The correlation of forensic and operational tactics.

Defined jointly for forensic and operational tactics are: presence of subject and object, with con- flicting interests (the tasks of operational activities and (or) criminal proceedings by one party, and prevent their realization – second); task of the subject, is to overcome the counter object (real or probable), or causing it to certain actions; that they are viewed in two ways: as a way of practice, as well as the relevant section of science.

The main criterion for the delimitation of forensic and operational tactics is their purpose to serve two interrelated but different state and legal institutions – the criminal process and operational activities. Determined that the operational-search tactics to overcome opposition, exerted in the form of conspiracy crime and forensic tactics – to overcome the opposition, except that secrecy has different forms (bribery, blackmail (including administrative burden), the physical removal and abduction and (or) the destruction of evidence obtained investigation, etc.). Emphasized that the question of tactics specific search operations that overlap in content with covert investigators (search) operations at a high scientific level developed in the theory of operational activities. Posted s definition of forensic tactics.

Keywords: criminal procedure, operational and investigative activities, covert investigative (detective) actions investigative operations, tactics, opposition.