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近年来,由于犯罪分子掌握了大量的智能化作案技术和反侦察经验,为了掩盖作案现场,逃脱责任,他们采用高科技手法将作案现场的手印、足迹等痕迹破坏掉,使侦查人员难以提取有效物证,进而增加了刑事案件的难度。在这样的犯罪形势下,传统的侦查方式已经不能适应当前的需要,这就要求侦查人员要不断扩大物证的检验范围,不能仅仅局限在常规的痕迹检查中,还要加强检验现场的一些微量物证,以不断适应刑事犯罪侦查工作的新要求。
In recent years, criminals have mastered a large number of intelligent crime-killing techniques and anti-reconnaissance experiences. In order to cover up crime scenes and escape responsibility, they use high-tech techniques to destroy traces of fingerprints and footprints on crime scenes so that investigators can not extract them effectively Material evidence, thereby increasing the difficulty of criminal cases. In such a criminal situation, the traditional methods of investigation can no longer meet the current needs, which requires investigators to continuously expand the scope of inspection of physical evidence, not only limited to the conventional trace inspection, but also to strengthen the inspection site trace evidence In order to constantly adapt to the new requirements of criminal investigation work.