Which action most directly supports maintaining the integrity of evidence by documenting chain of custody?

• A. Wearing personal protective equipment
• B. Limiting access
• C. Moving evidence
• D. Documenting the chain of custody

Answer: (D)

Maintaining evidence integrity hinges on an unbroken record of who handles the evidence, when, and where it’s been stored. Documenting the chain of custody creates that auditable trail, showing every transfer, access, and action taken with the item. This record is what allows investigators and courts to verify that the evidence presented is the same item that was collected and has not been altered, replaced, or contaminated since collection. The chain of custody typically starts at collection, continues through storage and transfer, and includes who opened or sealed containers, time stamps, and storage conditions, all of which support admissibility and reliability.

Wearing personal protective equipment helps prevent contamination to the evidence, which is important for preserving its physical integrity, but it does not by itself establish a documented history of how the evidence has been handled. Limiting access enhances security by reducing who can touch the evidence, yet without a formal record of those actions, the protection isn’t verifiable. Moving evidence may be necessary, but if it isn’t accompanied by proper documentation of each transfer and handling step, the integrity of the evidence remains unproven.