Define chain of custody and its importance.

• A. Documentation showing every person who handled evidence from collection to presentation; ensures integrity and admissibility in court.
• B. A list of unrelated materials found at a scene used for background.
• C. A diary kept by investigators.
• D. A legal document proving ownership of the evidence.

Answer: (A)

Chain of custody is the documented, unbroken record that shows every person who has handled evidence from the moment it is collected through its presentation or disposal. It records who touched the evidence, when, how it was stored, and what actions were taken, including packaging and seals. This keeps the evidence intact and protected from tampering, contamination, loss, or substitution, and it supports its reliability and admissibility in court. The option that describes this exact chain of handling and the purpose of preserving integrity is the correct one. The other choices describe things that are not about tracking who handles evidence or maintaining its integrity—unrelated materials, a personal diary, or ownership documents—so they don’t capture the purpose and function of the chain of custody.