dfm covers
 
 

Proactive Computer Forensics

Written by Scott Zimmerman

Proactive Computer Forensics

The third part in Scott Zimmerman’s series on Planning and Preparation. 


In this issue, Scott focuses on preservation of evidence. He explains how an organization should establish its policy regarding the investigation of a computer crime and preservation of evidence Before deploying the procedures described in this article.


The preservation of evidence can be a fairly labour intensive process. The procedures require time and resources – such as hardware and software – above and beyond those needed for normal system administration duties. Additional personnel may be required to handle the increased workload. Detailed planning is crucial, as is  complete management support. For these reasons, the point made at the beginning of this article is of vital importance. 


The process of storing information as evidence differs materially from the process of storing information purely for internal use. Even without extensive documentation, the integrity of logs and other files may be verified to the satisfaction of in-house personnel. However, the requirements of the judicial system dictate that evidence must possess a verifiably high level of integrity and a documented chain of custody (more on this later) before items can be accepted as evidence in court. An organization that follows the correct procedures for gathering evidence will be able to recover with relative ease after an intrusion; an organization that maintains information strictly for internal use may not be prepared to prosecute an intruder.


In order to build a solid case, the organization must gather all information in accordance with standard rules of evidence. 


In the United States, evidentiary requirements are contained in the Federal Rules of Evidence, or FRE. The complete Federal Rules of Evidence (2009) may be found at http://www.law.cornell.edu/rules/fre/index.html (will open a new window).


Of the thousand-plus rules available, we are most concerned with the relevant parts of Article VIII – Hearsay, and the relevant parts of Article X – Contents of Writings, Recordings, and Photographs. 


We shall look at Article VIII first…


The full article appears in Issue 4 of Digital Forensics Magazine, published 1st Aug 2010. You must log in with a valid subscription to read on...


 
Please make cache directory writable.
 

Submit an Article

Call for Articles

We are keen to publish new articles from all aspects of digital forensics. Click to contact us with your completed article or article ideas.

Featured Book

Learning iOS Forensics

A practical hands-on guide to acquire and analyse iOS devices with the latest forensic techniques and tools.

Meet the Authors

George Bailey

George Bailey is an IT security professional with over 15 years of experience

 

Coming up in the Next issue of Digital Forensics Magazine

Coming up in Issue 36 on sale from February 2018:


Crowd Sourcing Digital Evidence The Risk v The Reward

All digital devices used today can be considered as a potential source for digital evidence. Andrew Ryan investigates the current state in the art of crowd sourced digital evidence. Read More »

Recovery of Forensic Artifacts from Deleted Jump-List in Windows 10

Jump-Lists are widely discussed in forensics community since the release of Windows 7 and are having more capabilities to reveal forensics artifacts in Windows 10. Read More »

Subscribe today


Voice Biometrics

This article looks at the research and development in the field of Voice Biometrics and Speech Analytics, specifically Speaker Identification, Language and Gender Identification, Speech-to-Text Transcription, Keyword Spotting, and others. Read More »

Every Issue
Plus the usual Competition, Book Reviews, 360, IRQ, Legal

Click here to read more about the next issue