TY JOUR TI TAKING AN EXPERT'S OATH IN CRIMINAL PROCEEDINGS: A PROCEDURAL SCIENTIST'S POINT OF VIEW KW knowingly false expert opinion; expert signature; warning of criminal liability; expert oath; forensic examination; forensic expert JO Forensics: yesterday, today, tomorrow AU Rossinskiy, S.B. PY 2025 IS 0 PB East Siberian institute of the Ministry of Internal Affairs of the Russian Federation