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[使用SceneSafe FAST胶带提取血迹]

[Recovery of blood traces with scenesafe FAST tape].

作者信息

Keller Eva, Looser Markus, Bieri Hans-Peter, Kübler Eric, Balitzki Beate

机构信息

Institut für Rechtsmedizin der Universität Basel.

出版信息

Arch Kriminol. 2012 Nov-Dec;230(5-6):166-76.

Abstract

For complete and conclusive DNA profiling a sufficient amount of DNA must be available. For that, biological traces are recovered from crime scenes using special trace recovery material. The current method to collect biological traces for DNA analysis is to wipe them off with cotton swabs. However, for a few years the use of adhesive tapes has also been described for the recovery of evidence. In 2009, an adhesive tape was launched which was specially developed for the collection of biological traces. This product called Scenesafe FAST Tape (SSF) was investigated in this work to give recommendations for its use in evidence recovery. The results of this work show that the DNA can be extracted from the SSF very well. However, the tapes seem less suitable for direct use at the crime scene, as they are not flexible enough for adaptation to different crime scene conditions and the risk of contamination is higher than when collecting evidence with cotton swabs. Neither SSF nor cotton swabs are optimal for all requirements. The best method to recover biological evidence is still dependent on the surface material and the circumstances at the crime scene.

摘要

为了进行完整且结论性的DNA分析,必须有足够量的DNA。为此,使用特殊的痕迹提取材料从犯罪现场提取生物痕迹。目前用于DNA分析收集生物痕迹的方法是用棉签擦拭。然而,在过去几年中,也有人描述使用胶带提取证据。2009年,推出了一种专门为收集生物痕迹而开发的胶带。本研究对这款名为Scenesafe FAST Tape(SSF)的产品进行了调查,以便为其在证据提取中的使用提供建议。这项研究结果表明,可以很好地从SSF中提取DNA。然而,这些胶带似乎不太适合在犯罪现场直接使用,因为它们不够灵活,无法适应不同的犯罪现场情况,而且污染风险比用棉签收集证据时更高。无论是SSF还是棉签都不能满足所有要求。提取生物证据的最佳方法仍然取决于犯罪现场的表面材料和具体情况。

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