Law practitioners are in an uninterrupted battle with criminals in the application of computer/digital technologies, and these days the advancement in the use of Smartphones and social media has exponentially increased this risk. Thus it requires the development of a sound methodology to investigate Smartphones in a well defined and secured way. Computer fraud and digital crimes are growing rapidly and only very few cases result in confidence. Nowadays Smartphones accounts for the major portion as a source of digital criminal evidence. This paper tries to enlighten the development of the digital forensics process model for Smartphones, compares digital forensic methodologies, and finally proposes a systematic Smartphone forensic investigation process model. This model adapt most of the previous methodologies with rectifying shortcomings and proposes few more steps which are necessary to be considered to move with the advancement in technology. This paper present an overview of previous forensic strategies and the difficulties now being faced by the particular domain. The proposed model explores the different processes involved in the forensic investigation of a Smartphone in the form of an fourteen- stage model. The Smartphone forensic investigation process model (SPFIPM) has been developed with the aim of guiding the a effective way to investigate a Smartphone with more area of finding the potential evidence.
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