TY JOUR TI On the mechanism for implementing the principle of combining centralization and decentralization of management in the internal affairs bodies KW principle of combination of centralization and decentralization of management KW delegation of powers KW bodies of internal Affairs KW differentiation of powers JO Legal Science and Practice: Journal of Nizhny Novgorod Academy of the Ministry of Internal Affairs of Russia AU Petrova, O.V. PY 2019 IS 2019 PB Nizhny Novgorod Academy of the Ministry of the Interior of Russia