00549naa#a2200181#i#450# EN\\bibl\88049 20250213032035.4 2074-8183 20161225b2016####ek#y0engy0150####ca RUS RU DETECTIVE ACTIVITY IS THE SOURCE OF THE OPERATIONAL INVESTIGATIONS’ EVOLUTION THEORY Journal article Volgograd Volgograd Academy of the Ministry of Internal Affairs of Russia 2016 4 с. Journal article local va-mvd.editorum.ru