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Chain of custody (CoC), in legal contexts, is the chronological documentation or paper trail that records the sequence of custody, control, transfer, analysis, and disposition of materials, including physical or electronic evidence.
In a criminal case, this path must be clearly documented or attested to by those who handled the evidence. If the chain of evidence is broken, a defendant may be able to persuade the judge to declare the evidence inadmissible. Presenting evidence before the court differs from the gathering of evidence in important ways.
The chain of custody can be less stringent when dealing with property which has a unique identifying feature like a serial number. In such a case, the physical security becomes the main concern of the person recovering the item. Such security is normally achieved by booking the item into a central evidence room.
The chain of custody refers to the order in which evidence is handled by individuals who are involved in the case's investigation. The chain of custody is pertinent to the investigation and guarantees the physical security of all evidence that is part of the case. The following types of identifiers are needed to establish the chain: [8]
Chain of custody is an equivalent term used in law, especially for evidence in criminal or commercial cases. Software provenance encompasses the origin of software and its licensing terms. For example, when incorporating a free, open source or proprietary software component in an application, one may wish to understand its provenance to ensure ...
Authentication, in the law of evidence, is the process by which documentary evidence and other physical evidence is proven to be genuine, and not a forgery. Generally, authentication can be shown in one of two ways. First, a witness can testify as to the chain of custody through which the evidence passed from the time of the discovery up until ...
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The quantum of evidence is the amount of evidence needed; the quality of proof is how reliable such evidence should be considered. Important rules that govern admissibility concern hearsay , authentication , relevance , privilege , witnesses , opinions , expert testimony , identification and rules of physical evidence .