期刊名称:International Journal of Criminal Investigation
电子版ISSN:2247-0271
出版年度:2011
卷号:1
期号:2
页码:103-107
出版社:AIT Laboratories
摘要:The DNA it is present in every cell of a person’s body, not only in the cell’s nucleus but also in its cytoplasm, in mitochondria. Of great importance is the fact that the DNA is identical in every cell of the person’s body, except for the rare occurrence of a mutation. As a result, DNA can be taken from blood, saliva, sweat, skin cells, bone cells, or hair for individual identification. Body fluids containing cells are often collected as biological evidence. The many opportunities to obtain DNA evidence can be seen, for example, in the number of places where saliva has been identified: a bite mark, an area licked, bed linens, a mask worn, paper tissue, a washcloth, a cigarette butt, a toothpick, the rim of a bottle or can, and even dental f loss. DNA evidence can also be collected from fingernail scrapings, the inside and outside surfaces of a used condom, clothing, adhesive tape, a vaginal swab, an anal swab, and an oral swab.