What is the purpose of the chain of custody in digital forensics?

• A. Documenting all holders of evidence with time stamps; ensures admissibility and integrity
• B. Deleting chain-of-custody records after use
• C. Releasing evidence to the public without logging
• D. Digitally duplicating all evidence to avoid loss

Answer: (A)

The chain of custody is the documented trail that records every person who handles digital evidence, along with when and what was done to it. This ongoing log is essential because it preserves the evidence’s integrity and proves its authenticity from collection to presentation in court. By capturing who had access, where it was stored, and what actions were performed (for example, imaging, transfers, or examinations), investigators can demonstrate that the evidence has not been tampered with and that proper procedures were followed. This is why the purpose is to ensure admissibility and integrity through a verifiable, time-stamped record of all custody events. Deleting those records, logging releases to the public without safeguards, or merely duplicating data without documenting custody would undermine trust in the evidence and its admissibility.