防止指纹过度发育的方法,使用1,2-英达二/
Hongjin Choi1,2, Nokyeon Kwon2, Jiwon Kim2
1Gyeonggi Nambu Provincial Police Agency, Suwon, Korea.
Journal of forensic sciences
|February 1, 2025
概括
法医科学家可以通过调整热处理来增强纸质证据上的隐藏指纹. 将温度降低到160°C以下可以防止汗水丰富的印刷品过度发育,确保清晰的结果.
科学领域:
- 法医科学 法医科学 法医科学
- 化学 化学 化学
- 证据检查证据的检查
背景情况:
- 纸质证据上的隐藏指纹可以因汗水含量 (高或低) 而有所不同.
- 传统的1,2-英达二/处理,然后加热,可能会过度发展出含汗量高的指纹.
研究的目的:
- 调查防止纸上隐藏指纹过度发展的方法.
- 为了优化1,2-英达二/试剂的热处理过程.
主要方法:
- 研究了减少加热时间 (<10秒) 以防止过度发育的效果.
- 研究了将加热温度降至160°C以下,同时保持10秒的加热时间的影响.
- 开发了一种用于实际法医应用的两阶段加热程序.
主要成果:
- 仅仅减少加热时间对防止过度开发无效.
- 保持10秒的加热时间,并将温度降低到160°C以下,可以有效地防止过度发育.
- 一个两阶段的加热过程 (最初是用纸质缓冲器,次要是没有) 证明了高和低汗含量打印的效果.
结论:
- 优化热处理参数对于有效的指纹增强至关重要.
- 经过修改的加热技术成功地增强了纸上隐藏的指纹,而不会过度发展.
- 这种方法提高了法医调查中指纹检测的可靠性.
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