在现场勘查工作中,经常会从现场提取一 些物品回到实验室中作提取手印处理。但是, 在提取回的怀疑犯罪嫌疑人触摸过的物品上, 往往会有很多手印是事主或是无关人员所留, 有一些甚至是重叠手印。以光滑的非渗透性客 体为例(如塑料袋、玻璃片等),实际工作中 通常采用“502”胶薰显法来提取此类客体表 面的手印,若直接将这些物品放人薰显柜中进 In the on-site exploration work, often from the scene to retrieve some items back to the laboratory for fingerprint processing. However, there are often many handprints that are left on the subject or unrelated persons, some of which are even overlapping fingerprints, on items that are suspected of being touched by the suspect. In the case of smooth non-permeable objects (such as plastic bags, glass sheets, etc.), hand-prints on the surface of such objects are usually extracted using “502” glue in practice. Showcase into the cabinet