TY JOUR TI highest-ranking official; subject of the Russian Federation; powers; sanitary and epidemiological well-being; legal regime; pandemic KW highest-ranking official; subject of the Russian Federation; powers; sanitary and epidemiological well-being; legal regime; pandemic JO Bulletin of the Kazan Law Institute of MIA Russia AU Mescheryakov, A.N. PY 2022 IS 13 PB Kazan law institute Ministry of Internal Affairs Russian Federation