Which steps are essential to maintain the chain of custody for evidence?

• A. Store evidence in an open container without labels.
• B. Document transfers and secure storage to prevent contamination.
• C. Alter labels to correct mistakes.
• D. Document all transfers, secure storage, and avoid contamination or alteration.

Answer: (D)

Maintaining chain of custody means keeping evidence intact and proving, at every step, who handled it, when, where it was, and in what condition. The essential steps are to document every transfer, store the item securely, and take care to prevent contamination or alteration. That comprehensive approach creates an unbroken, verifiable trail from collection to presentation in court, so the evidence’s integrity is trustworthy.

Storing evidence in an open container without labels completely undermines this trail: without proper containment and clear identification, the item can be contaminated, misidentified, lost, or tampered with. Altering labels is also a direct breach of integrity and undermines the chain. While documenting transfers and secure storage are crucial, they alone don’t fully protect against all risks unless the item is consistently safeguarded to prevent contamination and alteration throughout every handoff.