目前,包装玻璃纸上的指纹,采用银粉末或其他有色粉末刷显的方法,得到的效果不佳,因而无鉴定条件。经过多次摸索和实验,我们发现用冷却法,然后将其放到502胶显现仪上熏显,能获得较好的效果。具体方法如下:将疑有指纹的玻璃纸,放入冰箱,或冰柜中,冷却30分钟左右,然后,取出放入502胶显现仪上熏显2至4小时,这样。有指纹的地方就被显出来了,之后,加上深色衬底拍照即可。这 At present, the fingerprint on the packaging of cellophane, using silver powder or other colored powder brush method, the results obtained are not good, so no identification conditions. After many guesses and experiments, we found that with the cooling method, and then put it on the 502 plastic display instrument smoked significantly, can get better results. Specific methods are as follows: The cellophane paper suspected of fingerprints, into the refrigerator, or freezer, cooling for about 30 minutes, then removed into the 502 plastic display instrument smoked significantly 2 to 4 hours, so. A fingerprinted place is displayed, after which, with a dark background photo can be. This