What is the purpose of a chain of custody?

• A. To document every transfer and handling of evidence to preserve integrity and admissibility in court.
• B. To publish a list of all items to the public.
• C. To record the weather during collection.
• D. To identify the person who collected the evidence only.

Answer: (A)

The chain of custody is a documented, continuous record of who handled evidence, when, where, and how it was transferred and stored, to preserve its integrity and admissibility in court. By tagging, sealing, and logging every transfer and handling event, investigators and laboratories can prove that the evidence remains the same item from collection through analysis to presentation, and that it hasn’t been altered, replaced, or contaminated. A complete trail allows the court to trust the evidence’s provenance and reliability; any gap or break can raise questions about tampering or changes, potentially affecting whether the evidence is allowed to be admitted. This is why the emphasis is on documenting every move and condition of the evidence from collection to courtroom, not on publishing lists, recording weather, or identifying only who collected it.