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  2. Chain of custody - Wikipedia

    en.wikipedia.org/wiki/Chain_of_custody

    An identifiable person must always have the physical custody of a piece of evidence. In practice, this means that a police officer or detective will take charge of a piece of evidence, document its collection, and hand it over to an evidence clerk for storage in a secure place. These transactions, and every succeeding transaction between the ...

  3. Evidence - Wikipedia

    en.wikipedia.org/wiki/Evidence

    Evidence for a proposition is what supports the proposition. It is usually understood as an indication that the proposition is true. The exact definition and role of evidence vary across different fields. In epistemology, evidence is what justifies beliefs or what makes it rational to hold a certain doxastic attitude. For example, a perceptual ...

  4. Anecdotal evidence - Wikipedia

    en.wikipedia.org/wiki/Anecdotal_evidence

    An anecdotal evidence (or anecdata [1]) is a piece of evidence based on descriptions and reports of individual, personal experiences, or observations, [2] [3] collected in a non-systematic manner. [4] The word anecdotal constitutes a variety of forms of evidence.

  5. Relevance - Wikipedia

    en.wikipedia.org/wiki/Relevance

    Specifically, Keynes proposed that new evidence e is irrelevant to a proposition x, given old evidence q, if and only if ⁠ x / eq ⁠ = ⁠ x / q ⁠, otherwise, the proposition is relevant. There are technical problems with this definition, for example, the relevance of a piece of evidence can be sensitive to the order in which other pieces ...

  6. Scientific evidence - Wikipedia

    en.wikipedia.org/wiki/Scientific_evidence

    Such evidence is expected to be empirical evidence and interpretable in accordance with the scientific method. Standards for scientific evidence vary according to the field of inquiry, but the strength of scientific evidence is generally based on the results of statistical analysis and the strength of scientific controls. [citation needed]

  7. Empirical evidence - Wikipedia

    en.wikipedia.org/wiki/Empirical_evidence

    Empirical evidence is evidence obtained through sense experience or experimental procedure. It is of central importance to the sciences and plays a role in various other fields, like epistemology and law. There is no general agreement on how the terms evidence and empirical are to be defined. Often different fields work with quite different ...

  8. Evidence management - Wikipedia

    en.wikipedia.org/wiki/Evidence_management

    Evidence must be managed and administered over its entire lifetime. The lifetime of a piece of evidence includes a number of key stages, [3] [4] from the piece of evidence's acquisition to its eventual disposal: Acquisition, which can be by: Collection, for example at a crime scene; Seizure; Voluntary deposit; Description, which includes ...

  9. Documentary evidence - Wikipedia

    en.wikipedia.org/wiki/Documentary_evidence

    A piece of evidence is not documentary evidence if it is presented for some purpose other than the examination of the contents of the document. For example, if a blood-spattered letter is introduced solely to show that the defendant stabbed the author of the letter from behind as it was being written, then the evidence is physical evidence, not documentary evidence.