%0 Journal Article %T Constitutional right to receive qualified legal assistance in operational investigative activities %A Gusev, V.A. %A Larin, E.G. %K lawyer, principal, constitutional rights and freedoms, prosecution, defense, operative investigation measures %J Vestnik of the St. Petersburg University of the Ministry of Internal Affairs of Russia %D 2021 %N 2021 %P 6 %I SAINT-PETERSBURG UNIVERSITY OF THE MINISTRY OF INTERNAL AFFAIRS OF THE RUSSIAN FEDERATION