TY JOUR TI Oaths in Criminal Procedure: Back to Tsarist Tools? KW giving knowingly false testimony KW knowingly false expert opinion KW refusal to testify KW witness signature KW expert signature KW warning of criminal liability KW oath KW judicial oath JO Bulletin of Kemerovo State University. Series: Humanities and Social Sciences AU Rossinskiy, S.B. PY 2025 IS 9 PB Kemerovo State University