Chain of custody refers to the documented and unbroken chronological record of who has had possession of, access to, or control over a piece of evidence from the moment of its capture through storage, transfer, and presentation. For video evidence from body-worn cameras, maintaining a proper chain of custody requires tamper-evident storage, access logging, and documented transfer records. A broken or disputed chain of custody can render video evidence inadmissible in legal proceedings, making it a critical consideration in evidence management systems.