Study on constructing forensic procedure of digital evidence on smart handheld device

As Information and Communication Technology grows the mobile communication devices became to necessary instrument in our daily living. According to DIGITIMES Research on 2012: the smart phone reached 635 millions a year and this number will be growing up 30% on 2013. It took 43.9% market share on overall cellular phone. By integrate operating system, camera, recorder, network, Bluetooth, calendar, multi-media texting and millions of Apps.; the powerful hardware and software of mobile devices provide highly mobility with powerful function to meet every kind of services and invite modern criminal use mobile devices as tools to achieve their activities. This study based on a guideline recommended by NSLEC (British National Specialist Law Enforcement Centre) and tried to propose a standard operating procedure of digital evidence forensic on smart phone; mean while, uses common handheld device forensic tools used by law enforcement departments as primary instruments to optimize and liabilities of digital evidences during preservation, collection, validation, identification, analysis, interpretation, documentation and presentation processes. Therefore strengthen the procedures used by forensic operator to complete the forensic processes quickly; and enhance the provable and authenticable of digital evidences.