Study On Estimation And Identification Of The Instrument Causing The Trauma By Use Of Sem/Edx

Objective:The component of legacy particles which from hacking of hammers on filter paper and skin of a pig is analyzed by SEM/EDX. Anew method of estimation and identification of the instrument causing the trauma is created through discussing three problems.1. How about the stability of legacy particles from hacking of hammers.2. Is there a difference in the legacy particles from different hammers?3. Whether the legacy particles from hacking of hammers on filter paper are same as from skin of a pig or not. Twenty hammers were analyzed through this method, to discuss the capability of the method to estimation and identification of the instrument causing the trauma.Methods:Metal grain from hammer No.1and No.3is analyzed by program Point&ID. Twenty points in each sample. Then the results are analyzed.Samples are created through two hammers (No.1and No.3) hacking filter paper and skin of a pig,9groups in each hacking. Then the samples are analyzed by program Feature and GSR. The results are analyzed by Microsoft Office Excel2003and SPSS13.0.Twenty samples are created through twenty different hammers hacking filter paper. Then the samples are analyzed by program Feature and GSR.Results:1.To analyze the results by hammer No.1hacking filter paper and skin of a pig. There is no difference in nine groups of data. It can infer that features of legacy particles by one hammer hacking several times are stable.2. There are differences between the results of metal grain, legacy particles by hacking on filter paper and legacy particles by hacking on skin of a pig from hammers No.1and No.3.3. There is no difference between the legacy particles by hacking of a hammer on filter paper and skin of a pig.4. This method can divided twenty hammers into six groups by analyzing the legacy particles. But it can’t be identified more subtle.Conclusions:1.The legacy particles is different when the particles from different hammers. The features of legacy particles is same as the hammer which be used to hack. It can be identified of different hammers through analyzing legacy particles from hacking of hammers.2. There is no difference between legacy particles from hacking of hammers on filter paper and skin of a pig. The features of legacy particles from hacking on filter paper can reflect the features of legacy particles from hacking on the human body. 3. This method can classify hammers into groups. But hammers can’t be individual identified through this method.