![]() In order to convict a defendant of a crime, the evidence against them must have been handled in a meticulously careful manner to prevent tampering or contamination. Under the law, an item will not be accepted as evidence during the trial-will not be seen by the jury-unless the chain of custody is an unbroken and fully documented trail without gaps or discrepancies. In practice, a chain of custody is a chronological paper trail documenting when, how, and by whom individual items of physical or electronic evidence-such as cell phone logs-were collected, handled, analyzed, or otherwise controlled during an investigation. Possibly the most well-known method for this is hash. Crime-related items found not to have followed a properly documented and unbroken chain of custody may not be allowed as evidence in trials. To preserve the chain of custody, an examiner must make sure that the data acquired matches the contents of the device being acquired.In criminal trials, the prosecution must typically prove that all evidence was handled according to a properly documented and unbroken chain of custody.Chain of custody is a legal term referring to the order and manner in which physical or electronic evidence in criminal and civil investigations has been handled. The aims of this work are to find out how the chain of custody has been applied to a wide range of models of the digital forensic investigation process for. ![]()
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