Forensic Science and Technology (ISSN:1008-3650)

Palm print is one of the most important parts of dermatoglyphics and forensic science. Palm print is genetic related and also is individual unique during one’s whole life. It has played and still playing a very important role in the individual identification. In this paper 720 pairs of inked palm print samples were collected and studied. Twenty two types of papillary patterns were found and their frequency of occurrence in each areas of palm was calculated. The distribution characters of triangles in tri-radiate area and the other accompanying patterns, such as stairs-like ridges and

There are few morphological methods for fingerprint age analysis, and it is not certain that the mastoid line morphology of fingerprint is correlated with age. Through statistical and correlated analysis of quantifiable feature information, it is found that the number of wrinkles and fine line, the density of mastoid line, the width of mastoid line and small furrow, and other indicators are correlated with age, but the use of these indicators is not enough to analyze the age of the hand imprint remnant. The purpose of this paper is to study the performance characteristics of fingerprints in

This study is intended to provide a visual and quantifiable auxiliary technology for analysis of rib fracture injury mode. The rib fracture caused by boxing and chest compression is simulated by the finite element method: (1) The fist model is set to hit the left chest of THUMS4.02 (Total Human Model for Safety 4.02) at the speed of 6m/s. (2) The pressing hammer model is set to presses the precordial region of THUMS4.02 with a vertical downward force of 400 N. Distribution and morphology of rib fractures shown by the simulation results were compared, and the injury mechanism of the two was

Image retrieval algorithms aim at achieving individual re-identification through searching across a gallery of people’s images from different non-overlapping video monitoring cameras. However, night-shot infrared pedestrians’ images captured by surveillance systems have different data distributions from those of conventional colored RGB images, resulting in loss of all the color components which are crucial for pedestrian comparison. The differences between the two kinds of images are regarded as their modality discrepancy that can lead to large intra-class variations and modali

The mixed stain of seminal and vaginal substances is significant evidence commonly found in sexual assault cases. How to isolate the involved perpetrator’s sperm and obtain its STR profiles is always the key to solving the relevant issue and the task any forensic DNA laboratory has to tackle. Many techniques have been invented to deal with the mixed stain, but the mainstream choice presently used in domestic laboratories is the differential lysis or its modified version. Although the methods mentioned above are of simple principle and low cost, they have still tended to bear some disa