根据烟蒂分析犯罪分子的烟龄初吸烟者遗留的烟蒂较长,烟蒂上唾液浸润较大,烟蒂变形。由于烟瘾较轻,一包烟可以吸几天,放在衣袋内,烟已变形、潮湿。常吸烟者遗留的烟蒂较短,烟蒂很少被浸湿,有能把烟粘在嘴唇上讲话的技巧。烟灰与烟蒂不成比例,系一支套一支吸烟的结果。由于吸烟频繁,烟和烟蒂完整性保持较好。 According to the analysis of cigarette butt criminals cigarette smokers at the beginning of the cigarette smokers left a long, saliva on cigarette butts infiltration, cigarette butt deformation. As a lighter cigarette, a pack of cigarettes can suck a few days, on the pocket, the smoke has been deformed, damp. Cigarette butts, which are often left behind by smokers, are shorter, the stems are less wetted and have the ability to stick cigarettes on their lips. Soot and cigarettes out of proportion, the result of a set of one smoking. Due to frequent smoking, the integrity of the cigarette and cigarette butt remains relatively good.