TY JOUR TI THE ADVERSARIAL PRINCIPLE AS A DETERRENT ON CRIMINAL PROCEDURE AT THE STAGE OF PRELIMINARY INVESTIGATION KW principle and model of contentiousness KW investigator KW parties KW prosecution KW defense KW court KW confrontation KW fighting KW dispute KW winning a case KW fail in suite KW criminally-remedial activity KW objective truth KW information picture KW prosecution KW objective investigation JO Volgograd Academy of the Ministry of the Interior of Russia AU , .. PY 2015 IS PB Volgograd Academy of the Ministry of Internal Affairs of Russia