不说这个消息真假,技术上没太大问题. 图书馆应该有这方面书,就是一些toxicology和重金属生物影响的书, amazon上一搜一堆。还有某高人提到小说白马旅店 (The Pale Horse)。 出借的书有记录, 馆内阅览的书如果不是像金庸小说一样在清华脍炙人口,周转率低过 几个月有可能保留指纹不被污染,如果公安盯着孙维和有限几个人查,一本书一个指纹 就够了。 技术上,纸上的指纹不泡水能保留几十年。 Fingerprints on paper, cardboard and unfinished wood can last for up to forty years (per actual casework histories) unless exposed to water (and contaminate transfer prints can even then sometimes persist). Fingerprints on non-porous surfaces such as plastic, metal and glass can last for many years if not exposed to water and if left undisturbed. http://www.msainvestigations.com/blog/Investigations-blog/MSA-I