TY JOUR TI Concept and legal framework of the preventive activity of an investigator KW investigator KW preventive activity KW investigation KW criminal case KW preliminary investigation KW crime prevention KW legal regulation JO Society, law, statehood: retrospective and perspective AU Fayrushina, R.D. AU Imaeva, Y.. PY 2023 IS 0 PB Ufa Law Institute of the Ministry of Internal Affairs of Russia