Forensic examination of how the use of expertise of knowledgeable individuals is one of the proceedings aimed at obtaining an expert opinion. The appointment of forensic narcotics, psychotropic, strong and poisonous substances, analogues and precursors of narcotic drugs and psychotropic substances, in the hands of the investigator, the court. Production of forensic activity as the main expert,
... [Show full abstract] aimed at addressing the problems posed by the investigator (or a court) in the decision (ruling) on the appointment of expertise. The purpose of the article was to determine the range of tasks of expert appointed by the court in consequence or investigation of the facts of illegal sale, manufacture, processing, cultivation of prohibited and controlled by means of substances, plants, fungi, etc., into the discovery of clandestine laboratories and the clandestine manufacture, revealing embezzlement and theft of drugs from pharmacy chains. The expert's conclusion that satisfies the essential criteria (relevance, admissibility, reliability, compliance with orders, completeness and scientific validity) can be found after checking the investigator and court admissible evidence. It can not be given an expert in violation of procedural norms (examination scheduled and carried out after the suspension or termination of the criminal case, the examination carried out by a person subject to allotment, which was not prevented in accordance with the law on criminal responsibility for refusal or evasion from expert conclusion, or for giving knowingly false imprisonment, violated procedural form an expert opinion, there is no signature of the expert who carried out the examination, the conclusion drawn on the basis of data that are missing in the case file, the investigator violated the rights of the participants of the preliminary investigation in the appointment and conduct of expert analysis). Expert capabilities in detection and investigation of crimes in the sphere of drug trafficking are constantly increasing, in the capable hands of the investigator and the court could become a formidable weapon to counter drug-related crime.