Study On Traces Of The Part Separated From The Whole

The context of forensic traces on the narrow sense generally refers to the material the criminals left on the crime scene, which can be identified in the judicatory authenticates. The fingerprints, footprints, tool traces, bullet marks are popular on the crime scene, traces of the part separated from the whole is not seldom seen.The traces in the past often referred to as breaking away from the traces of objects generally understood by the external force as the whole led to separation, the separation of traces formed on the stump. Note that most people would often take a simple understanding of the overall separation of traces can be combined for the two objects on the surface adjacent to the general outline, but we are talking about the overall separation of traces of the overall material has been separated, was isolated traces of material on the were isolates not necessarily longer put together the original as a whole, this is not only the trace on the stump, but also the nature of the object itself.Separation of traces at the scene as a whole appear more frequently, but rare in the academic community their tracks, takes the law is difficult because of its summary, the contents of complex and specialized, can not be a certain standard to measure the overall separation of traces of different kinds. This article is in reference to a large number of excellent monographs and papers on the basis, using a comparison, the logic confirmation, history, empirical research methods such as creation complete. The body is divided into four parts, a total of more than 30000 characters.The first part is an overview of the whole separation of traces. This section discusses the basic concepts, characteristics, roles, types of material are separated and the overall separation of traces of the formation and type. Separation of traces of the whole matter is as a whole, under the external force caused by the separation being separated traces formed on the stump, with hand, foot and workers have their own guns than unique features. By isolates of the overall separation of traces of the carrier, the paper texture, shape, composition type and the relationship between criminal behavior and the perspective of classification. Separation of traces from the formation of the whole, there are three elements: those imposed by foreign powers, the role of force, were isolates exist. As a whole item can be divided into break away from the separation of traces of traces from the traces, no traces of fracture separation. The second part is common isolate characteristics of the overall separation of traces. The first section discusses the overall separation of trace elements - the overall separation of traces of formation will be subject to external role, their own physical structure and outside influence, it can be decomposed into the overall separation of traces of the three parts of the separation characteristics of , inherent characteristics and additional features. The second to fifth sections respectively, paper, wood, textiles, glass, separated from the nature of material types, material characteristics of the overall separation of traces of the material's inherent characteristics and additional features of the study described four angles.Part III is divided into the overall separation of traces of on-site investigations and the investigation of the application. This is some of the major statements of the on-site investigation in the overall separation of traces of how to find, extract and fixed, and have good overall separation of traces of how the circumstances of the case after the analysis.Part IV is divided into a whole separate identification of traces. This section discusses the overall purpose of separation of traces of identification, content and procedures. Identification of the main use of the overall separation of traces of traces of the principle of learning by the separation of traces of separated material characteristics, the inherent features and additional features, and according to its constituent parts to determine the relationship between identification of the contents of the isolates, including being put together and organize to determine the relationship between separated objects, while the tool marks identification. Separation of traces of the whole identification procedure is divided into separate objects were being tested to compare test and a comprehensive judged in three parts.Part V is a suggestion about database construction. At present there are many difficulties to establish a nationwide database to comparison, we can only give some ideas: the most suitable approach is analyzing the features include separated matter the species, separation characteristics, the inherent characteristics and additional features to draw conclusions first, then compare with computer-aided.