A Review and Comparative Study of Digital Forensic Investigation Models

In this paper we present a review and comparative study of existing digital forensic investigation models and propose an enhanced model based on Systematic Digital Forensic Investigation Model. One significant drawback in digital forensic investigation is that they often do not place enough emphasis on potential admissibility of gathered evidence. Digital forensic investigation must adhere to the standard of evidence and its admissibility for successful prosecution. Therefore, the techno-legal nature of this proposed model coupled with the incorporation of best practices of existing models makes it unique. The model is not a waterfall model, but iterative in nature helping in successful investigation and prosecution. The result of the study is expected to improve the whole investigation process including possible litigation.