Finally, there comes the most challenging part… the hunt for lifting latent fingerprints.

最后，最具挑战性的部分来了，寻找潜伏指纹。

And Latent Fingerprints are the invisible impressions created by skin secretions on various surfaces.

潜伏指纹是皮肤分泌物在不同表面产生的无形印象。

In some cases, CSIs will also use cyanoacrylate or super glue fumes to enhance a latent fingerprint from a rough surface.

在某些情况下，犯罪现场调查人员还会使用氰基丙烯酸酯或强力胶烟雾来增强粗糙表面的潜在指纹。