| 摘要 |
PURPOSE:To provide a latent fingerprint detecting method that is easily operated, and safe, and having no problem on environmental sanitation by removing the defects in the conventional latent fingerprint detecting method in which ruthenium tetroxide has been used. CONSTITUTION:A latent fingerprint is immersed in a single solution or mixture of a halogen-containing saturated hydrocarbon of ruthenium tetroxide, ether, or a ester compound, or it is exposed to the vapor of gas produced therefrom. |
