TY JOUR TI GROUNDS FOR RETURNING A CRIMINAL CASE TO THE PROSECUTOR FROM APPELLATE AND CASSATION INSTANCES: COMPARATIVE LEGAL ANALYSIS AND PRACTICAL ASPECTS KW return of criminal case KW appellate instance KW cassation instance KW procedural violations KW st. 237 KW judicial practice KW qualification of the act KW criminal procedure. JO Vestnik of the East Siberian institute of the Ministry of internal affairs of the Russian Federation AU Vast'yanova, O.D. PY 2026 IS 0 PB East Siberian institute of the Ministry of Internal Affairs of the Russian Federation