OCR Text |
Show Detecting Invisible Finger-Prints. Officers of the San Francisco bureau bu-reau of identification have, It Is said, perfected a process by which they develop de-velop Invisible finger-prints. The discovery dis-covery consists of a chemical solution that 1b kept secret. In a recent murder case, a former suitor of the murdered girl was suspected. He disappeared mysteriously after the crime, but the detective found a time table In the room where the young man had lived. The new solution was sprayed on the pages of the booklet. Gradually green marks began to develop, and they proved to be bloodstained finger-prints. This wr three days after the murder. A streak made by a finger soon disappeared. dis-appeared. At the end of it was a clearly defined finger-print. It pointed straight to a email village in Ohio, where the detectives Journeyed and arrested their man. |