TY JOUR TI Legal nature of lawful use of weapons as a circumstance excluding criminality of an act KW lawful use of weapons; circumstances precluding criminality; special status of the subject; legality of the harm caused; circumstances precluding liability JO Vestnik of the St. Petersburg University of the Ministry of Internal Affairs of Russia AU Lyapin, D.O. PY 2022 IS 2022 PB SAINT-PETERSBURG UNIVERSITY OF THE MINISTRY OF INTERNAL AFFAIRS OF THE RUSSIAN FEDERATION