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Environmental control stub

A blank carbon-tape stub collected from the collection environment (table surface, custody cell, vehicle seat) to establish background particle levels in the case-specific setting. Required by ASTM E1588-20 and ENFSI Best Practice Manual.

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Related terms

5% HNO3 swabCarbon-tape stub (Tri-Mark)NABIS (National Ballistics Intelligence Service)Persistence half-life (GSR on hands)Secondary transferTertiary transfer

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