GB/T 41774-2022Forensic sciences—Code of practice for identification of explosive device (English PDF)

Foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for Standardization Work Part 1: Structure and Drafting Rules of Standardization Documents" drafted.

1 Scope

This document establishes the identification procedures and steps of explosive devices in the field of forensic science, and describes the inspection methods and judgment basis of explosive devices.

This document is applicable to the inspection and identification of decomposed explosive devices in the field of forensic science, and can also be used for reference in other fields.

2 Normative references

The contents of the following documents constitute essential provisions of this document through normative references in the text. Among them, dated citations documents, only the version corresponding to that date applies to this document; for undated references, the latest edition (including all amendments) applies to this document.

GB/T 41775 Forensic Science Explosives Identification Terms

3 Terms and Definitions

Terms and definitions defined in GB/T 41775 apply to this document.

4 Identification procedures

Through the inspection and identification of the explosive energy and detonating components of the suspected explosive device, as well as the functional inspection of the components of the suspected explosive device, The analysis of the ignition method and the judgment of the matching relationship between the detonating components and the explosives are used to identify the suspected explosive devices and their types.

The identification procedures are divided into safety inspection, appearance inspection, structural inspection, component function inspection, type inspection of explosives, inspection of detonating components, Control mode analysis, ignition mode analysis and matching relationship analysis between detonating components and explosives are 9 steps.

5 Instruments

5.1 Stereo microscope.

5.2 Non-magnetic tool set.

5.3 Separation Tools.

5.4 Ruler or tape measure, the division value is 1mm.

5.5 Vernier caliper, graduation value 0.02mm.

5.6 Multimeter.

5.7 X-ray machine.

6 Inspection materials

The components of the suspected explosive device after dismantling, together with photos, videos, text description materials of the dismantling process, and a schematic diagram of the structure of the suspected explosive device Figure etc.