TY JOUR TI EVIDENTIARY SIGNIFICANCE OF PETITION ON PRETRIAL AGREEMENT ON COOPERATION IN THE EVENT OF REFUSAL OF ITS SATISFACTION KW pretrial agreement on cooperation KW petition KW evidence and proof KW mitigating circumstances JO Bulletin of the Kazan Law Institute of MIA Russia AU Karlov, A.. PY 2017 IS 8 PB Kazan law institute Ministry of Internal Affairs Russian Federation