CHFI Computer Forensics Fundamentals and Process Practice Question
A forensic investigator is documenting evidence for a case. What is the PRIMARY purpose of maintaining an unbroken chain of custody for digital evidence?
⚠ Common exam trap
EC-Council often tests the distinction between the operational benefit (tracking location) and the legal purpose (proving integrity), so candidates mistakenly choose Option A because they focus on the logistical aspect rather than the evidentiary admissibility requirement.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
To prove that the evidence has not been altered or tampered with.
The primary purpose of maintaining an unbroken chain of custody is to establish the integrity and authenticity of digital evidence by documenting every person who handled it, every transfer, and every access event. This documentation allows the court to verify that the evidence has not been altered, tampered with, or corrupted from the moment of seizure through analysis and presentation. Without a provable chain of custody, the evidence may be deemed inadmissible under rules like Federal Rule of Evidence 901 or similar standards in other jurisdictions.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
To track the storage location of the evidence.
Why it's wrong here
Tracking storage location is only one administrative detail within the log; the chain's purpose is to prove evidence integrity and prevent tampering from seizure to court. It is tempting because location tracking is a visible part of the form, and would suffice if the sole concern were finding where an exhibit is stored.
- ✓
To prove that the evidence has not been altered or tampered with.
Why this is correct
An unbroken chain of custody records every transfer, handler and storage location of the evidence from seizure to court. This documentation proves the evidence has not been altered or tampered with, satisfying the requirement to demonstrate its integrity and admissibility throughout the investigation.
- ✗
To speed up the investigation process.
Why it's wrong here
Speeding up the investigation is not the purpose; chain of custody exists to demonstrate that evidence has not been altered, supporting its admissibility. It is tempting because good documentation does reduce confusion and delays, and would be a valid benefit if efficiency were the stated objective rather than integrity.
- ✗
To assign responsibility for the evidence to a single individual.
Why it's wrong here
Assigning responsibility to one individual misstates the purpose, which is proving integrity and continuity of possession across every transfer. It is tempting because each transfer does require a signature, and would be correct if the goal were accountability for an exhibit rather than admissibility in court.
Go deeper
Related to this question
Learn chapter
Evidence Handling and Chain of Custody
Key term
Chain of custody
Chain of custody is a documented process that tracks the handling, transfer, and possession of evidence or digital assets from the moment they are collected until they are presented in court or used in an investigation.
Key term
Evidence Admissibility
Evidence admissibility is the legal and technical standard that determines whether digital evidence can be used in a court of law.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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