Research On The Identification Of Mobile Phone Holders In Mobile Phone Forensics

With the development of wireless communication technology and the increasingly powerful functions of mobile phones,mobile phones have been fully integrated into all aspects of people's work and life.At the same time,mobile phones are more frequently mentioned in the process of case investigation,whose data are key to case breakthrough.However,police often fail to identify the owners of the mobile phones and prove the relevance between mobile phone data and cases when they are trying to obtain evidence through mobile phones,which results in uselessness of some valuable data.It is of great significance to study the identification of mobile phone owners.First of all,the purpose of obtaining mobile phone data is to provide evidence in court,which requires that mobile phone data must be related to the case.From this aspect,it is accepted that mobile phone owners are the only bridge between mobile phone data and the case.Secondly,police often come across the following situations in practice:such as police are fail to find out mobile phone owners,the owners refuse to admit that mobile phones belong to themselves,the owners try to avoid being investigated by some methods etc.Therefore,police need a set of effective methods to solve the problem of identification of owners.Finally,at present,police generally adopt the way of "confessing" of the owner to determine the identification,which not only lacks evidence,but also is prone to stealing identity.As a matter of fact it is contrary to the principle of "relying more on evidence than on confession" in the law and needs to be further improved.The essay starts with configuration information and storage data information of the mobile phone to identity of the owner through the experimental way in combination with the case.In the experimental part,the essay is based on the real cases and randomly selects 100 mobile phone samples to identify the owners through extractions and examinations of the data of address book,call logs,SMS,instant messaging APP,browser,cloud account and map APP etc in combination with clues to the cases such as biological materials,trace evidence.Finally,nine identification methods are concluded,including identification of registration information,identification of database comparison,identification of abnormal communication,identification of special signs,identification of physiological characteristics,identification of linguistic characteristics,identification of behavioral characteristics,and identification of case connection.That the identification of the owner should be paid more attention to in the process of obtaining evidence is put forward in the essay,whose purpose,practical and legal significance is also emphasized in the essay.All the test materials are from real cases,and the experimental results are also verified by the real situation of the case.Therefore,the experimental data and analysis results are more accurate and objective,with higher reference value.The identification of mobile phone owner summarized in this paper solves practical problems,which is of great significance for police to solve the problem of owner identification,further fix the case evidence,and ensure the justice of judicial procedure.