TY JOUR TI ON THE QUESTION OF THE DEFENDER POWERS AT THE PRELIMINARY HEARING KW preliminary hearing; powers of defense counsel; approval of petition; technical error; termination of criminal case; detailed regulation of norms JO Bulletin of the Kazan Law Institute of MIA Russia AU Magomedov, R.M. PY 2025 IS 16 PB Kazan law institute Ministry of Internal Affairs Russian Federation