TY JOUR TI CRIMINAL PROCEDURE ASPECTS OF LAW ENFORCEMENT ACTIVITIES TO COUNTER ILLEGAL MIGRATION: CHALLENGES AND PROSPECTS KW illegal migration; criminal process; law enforcement; preliminary investigation; organization of illegal migration; international cooperation JO Bulletin of the Kazan Law Institute of MIA Russia AU Bogatkina, R.S. PY 2025 IS 16 PB Kazan law institute Ministry of Internal Affairs Russian Federation