What is the purpose of maintaining chain-of-custody in digital evidence handling?

• A. To publish the chain publicly
• B. To assign blame to a suspect
• C. To speed up the investigation
• D. To ensure that evidence remains tamper-proof and admissible

Answer: (D)

Chain-of-custody is the documented, unbroken record of who has handled digital evidence, from collection through storage, analysis, and presentation. In digital forensics, this means keeping detailed logs of every person who accessed the data, every copy made, every transfer, and every action performed, often backed by forensically sound methods and verifiable hashes to prove the data hasn’t changed. The goal is to preserve the evidence’s integrity and authenticity so it remains reliable and defensible in court; without a clear chain of custody, the data can be challenged or excluded as potentially tampered with. While speed and privacy are important considerations in investigations, they do not replace the need to demonstrate that the evidence remains tamper-proof and admissible.