During a forensic investigation into a recent security incident within an organization, the investigator is tasked with documenting every action…

The actions described—documenting every action in a logbook, tagging evidence with unique identifiers, and creating a detailed chain of custody record—are the core activities of evidence preservation. The purpose of preservation is to maintain the integrity and authenticity of the evidence from the moment of collection until its presentation in court. A meticulously maintained chain of custody is essential to demonstrate that the evidence has not been tampered with or altered in any way, ensuring its admissibility. This step ensures that the evidence is forensically sound and can withstand legal scrutiny.

B. Scoping involves defining the boundaries of the investigation (e.g., which systems to examine), which is a planning step that occurs before evidence handling.

C. Data analysis is the technical examination of the evidence's content to find artifacts and information related to the incident, which happens after preservation procedures are in place.

D. Search and seizure is the physical act of locating and taking legal control of the evidence; the scenario describes the procedures followed after seizure.

1. Kent

K.

Chevalier

S.

Grance

T.

& Dang

H. (2006). NIST Special Publication 800-86

Guide to Integrating Forensic Techniques into Incident Response. Section 3.2.2

"Preserve Evidence

" details the need for a chain of custody and proper handling to prevent alteration.

2. U.S. Department of Justice. (2008). Electronic Crime Scene Investigation: A Guide for First Responders (Second Edition). Section 3

"On-Scene Activities

" pages 33-35

emphasizes the critical importance of documenting the collection and handling of electronic evidence to establish the chain of custody.

3. Casey

E. (2011). Digital Evidence and Computer Crime: Forensic Science

Computers

and the Internet (3rd ed.). Academic Press. Chapter 4

"Processing the Crime Scene

" extensively covers evidence handling procedures

including documentation and chain of custody as fundamental to preserving evidence integrity.