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TWGFEX / SWGMAT

Technical Working Group for Fire and Explosion Investigation (now OSAC Fire Investigation, Explosives and GSR Subcommittee): the US body that publishes guidelines for post-blast scene investigation, explosive residue collection, and analytical methods, aligned with ENFSI Explosives Working Group internationally.

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ASTM E1492BSA 2023 (Bharatiya Sakshya Adhiniyam 2023)Chain of custody (CoC)Court sampleDEA Form DEA-7FSR Codes of Practice and ConductMahazar (Panchnama)Permeability (packaging)Tamper-evident sealing

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