Digital Audio Forensics Fundamentals

Chapter 7

Preparatory analysis

Introduction

Before any forensic audio examination can commence, there are several preparatory steps which must first be performed (Reith et al., 2002). As much care and consideration should be given to these stages as any other part of an examination as any errors here could affect all future analyses or processes which follow, and subsequently, the reliability of the final outcome.

Exhibit imaging

Although in some respects digital evidence is less volatile than some of the more traditional forensic sciences, such as fingerprints and DNA (which can become contaminated solely through physical contact), it is still an extremely fragile format and can be altered beyond repair relatively easily (National Institute ...