Book Image

Practical Digital Forensics

By : Richard Boddington
Book Image

Practical Digital Forensics

By: Richard Boddington

Overview of this book

Digital Forensics is a methodology which includes using various tools, techniques, and programming language. This book will get you started with digital forensics and then follow on to preparing investigation plan and preparing toolkit for investigation. In this book you will explore new and promising forensic processes and tools based on ‘disruptive technology’ that offer experienced and budding practitioners the means to regain control of their caseloads. During the course of the book, you will get to know about the technical side of digital forensics and various tools that are needed to perform digital forensics. This book will begin with giving a quick insight into the nature of digital evidence, where it is located and how it can be recovered and forensically examined to assist investigators. This book will take you through a series of chapters that look at the nature and circumstances of digital forensic examinations and explains the processes of evidence recovery and preservation from a range of digital devices, including mobile phones, and other media. This book has a range of case studies and simulations will allow you to apply the knowledge of the theory gained to real-life situations. By the end of this book you will have gained a sound insight into digital forensics and its key components.
Table of Contents (18 chapters)
Practical Digital Forensics
Credits
About the Author
Acknowledgment
About the Reviewer
www.PacktPub.com
Preface
Index

The nature and problem of unsound digital evidence


Evidence tendered in legal hearings must meet the expectations of the court. The validity of digital evidence must be tested to determine its admissibility in legal cases in the same way as other established forms of evidence are verified.

As outlined in Chapter 3, The Nature and Special Properties of Digital Evidence, for evidence to be admissible in a hearing, it must meet three conditions: that it was obtained lawfully, is relevant to the case, and has not been contaminated.

It must generally be demonstrated that it has not been altered or damaged in any way prior to, during, or after its acquisition and that adequate or sufficient evidence was collected to support a case. If it passes these conditions, it may be argued that the evidence has been validated or at least tested and the likelihood of its validity has been determined. If it is valid, then it may be tendered and judged on its evidentiary merit.

There really is no universally well...