In this paper, we deal with introducing a technique of digital forensics for reconstruction of events or evidences after the commitment of a crime through any of the digital devices. It shows a clear transparency between Computer Forensics and Digital Forensics and gives a brief description about the classification of Digital Forensics. It has also been described that how the emergences of various digital forensic models h elp digital forensic practitioners and examiners in doing digital forensics. Further, discussed Merits and Demerits of the req uired models and review of every major model.
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