近来 ,盗窃电脑主机内的CPU主板、内存条的案件逐渐增多。此类案件现场勘察技术处理手段通常是有针对性查找主机机箱内侧遗留的指纹以获得案件线索。最近 ,在我辖区内发生的一起类似的盗窃案现场勘查中 ,一枚遗留在印刷电路板上的灰尘减层指纹的发现和提取方法 ,给此类案件的勘 Recently, the theft of host CPU within the computer motherboard, memory cases gradually increased. The technical means of site investigation in such cases is usually to find out the fingerprints left over from the inside of the chassis of the host to obtain the clues. Recently, in a similar on-site investigation of theft that took place in my area of ​​interest, a method of detecting and extracting dust-reduced fingerprints left on a printed circuit board