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Participation in the ENFSI Expert Working Group Proficiency Test

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Within the framework of the ENFSI Working Group ‘’Firearms/GSR’’ and through support of the European Union the proficiency test FDSD2015 (forensic determination of shooting distance) was performed in 2015. The National Bureau of Expertises also  took part in the second stage of its activities.

In total, 49 laboratories participated in the proficiency test. Among them were 42 European laboratories from 22 different countries (including 13 from German) and 7 laboratories from the United States, Australia and Israel and the National Bureau of Expertises from Armenia.

This proficiency test was carried out in order to assess the laboratories’ performance of visualizing lead patters and comparing questioned patterns with test patterns.

Each participant received 14 pieces of cloth containing lead distributions that mimic the lead distribution pattern of a shooting incident. The bullet hole was marked by a black circle located in the middle of the sample.

12 samples were indicated as test shot series with the corresponding shooting distance printed in black in the lower left corner. The other two samples were case samples, labeled ‘’A’’ and ‘’B’’. The labels were placed on the lower left corner of the printed side of the sample.

The results of the study conducted by the chemist-expert of the National Bureau of Expertises Fireamrs department A.Gasparyan were sent to Martin Barth.

17 laboratories out of  49 laboratories could accurately determine 2 unknown shot distances. The Firearm Expertises Department  of the National Bureau of Expertise is included in this list and received a certificate for participation.

The presentation of the results of the FDSD 2015 Proficiency Test is intended to be held at the Final Meeting from 14th to 15th April 2016 in Wiesbaden, Germany. The presentation of the results will contain further statistical analyses, e.g. laboratory case shots, the comparison  of the  analytical results obtained by the different transfer media and the analyses of the images of the staining.

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