When a security guard takes possession of physical evidence pending police arrival, the 'chain of custody' principle requires:
Explanation
Chain of custody is the unbroken, documented chronology of who possessed, handled, transported, or analyzed an item of evidence from discovery to presentation in court. Gaps invite challenges that the evidence may have been tampered with, swapped, or contaminated, potentially excluding it under Evidence Code §1400 et seq. Guards should secure the item promptly (gloves to avoid contamination), record discovery details (time, location, finder), bag/tag/seal with identifying information, store securely, and document each subsequent handler and time of transfer. Photograph (a) is appropriate but does not replace preservation. Unsecured storage (b) and free handling (c) break the chain.
Law Reference: Cal. Evidence Code §1400 et seq. (authentication); chain-of-custody doctrinePractice all 200 questions free — no signup required.
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