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犯罪分子在作案过程中为了逃避打击,掩盖其犯罪事实,不仅戴手套、换鞋、变换作案工具,而且采用各种手段破坏现场,使我们提取不到犯罪分子的手印、足迹等可供认定人身和串并案件的有形痕迹。但从刑事案件现场的实际情况看,犯罪分子在作案过程中,尽管采用各种方法毁证灭迹,但是其作案手段具有相对稳定性,即现场上还存在一些不易被破坏的无形痕迹。由于犯罪分子在生理、心理和行为习惯上的差异,反映在犯罪现场上的行为和结果也不相同。在生理上,由于犯罪分子的个体差异,使他们在选择出入口、作案工具、侵害目标、侵害方式等方面就有所不同。在心理上,由于犯罪分子的性格、个人经历和作案动机不同,会产生不同的犯罪心理,也就会表现出不同的犯罪行为。在习惯上,由于犯罪分子日常生活和工作环境的制约,以及长期作案过程中心理和行为的定型,使他们逐渐形成了自身的
In order to escape the blow and hide their criminal facts, criminals not only wear gloves, change shoes, and change tools, but also use various means to destroy the site so that we can not extract the fingerprints and footprints of the criminals for identification. And the visible traces of the series of cases. However, from the actual situation of criminal cases, criminals in the process of committing the crime, despite the use of various methods to destroy evidence, but its modus operandi is relatively stable, that is, there are still some invisible traces of the site is not easy to be destroyed. Due to the difference in physical, psychological and behavioral habits of criminals, the behaviors and outcomes reflected in the crime scene are not the same. Physically, due to the individual differences of criminals, they are different in the choice of entrances and exits, tools of committing crimes, infringement of objectives, ways of infringement. Psychologically, due to the character of criminals, personal experiences and different motives for committing crimes, different criminal minds will be produced and different criminal behaviors will also be manifested. Traditionally, due to the daily life and work environment of criminals and the stereotypes of psychology and behavior in the process of long-term committing crimes, they gradually formed their own