TY JOUR TI PAROLE AS THE ELEMENT (SUBSYSTEM) OF PROGRESSIVE SYSTEM OF EXECUTION AND SERVING OF IMPRISONMENT FOR A CERTAIN TERM KW parole KW element KW progressive system KW stages KW execution KW serving KW criminal penalty KW imprisonment KW convict KW system of criminal trial KW execution of a sentence KW activity KW criminal law KW criminal and executive right KW criminal procedure right JO Penal law AU MALIN, P.. PY 2017 IS 12 PB Academy of the FPS of Russia