TY JOUR TI STANDARDIZATION OF FORENSIC SERVICES AS A KEY INSTRUMENT FOR THE IMPLEMENTATION OF THE PRINCIPLE OF OBJECTIVITY KW forensic examination KW principle of objectivity KW standardization KW expert methods KW reproducibility of results KW unification of expert procedures JO FORENSIC EXAMINATION AU Poryvaeva, P.S. PY 2026 IS 0 PB Volgograd Academy of the Ministry of Internal Affairs of Russia