Abstract
Since October 2010, the NFI offers a “DNA-6hours” service to the Dutch police aiming to provide early investigative leads. Within the DNA-6hours procedure DNA information is rapidly derived from an evidentiary trace, the STR profile is searched against the DNA profiles of known persons in the DNA database and a brief report containing information about match or no match is given to prosecution. Here, the STR system used in the direct and rapid amplification procedure is upgraded from 11 to 16 loci to comply with current profiling data comprising the new European standard set of loci. In addition, a brief DNA extraction procedure is introduced that can be applied to tape-lifts taken from cigarette butts or punches excised from licked envelope seals to increase success rates for these sample types.
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