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Practical Digital Forensics by Richard Boddington

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The presentation of digital evidence

There are two main types of testimony given by professionals at a trial, deposition, or hearing:

  • Technical or scientific witness testimony
  • Expert witness testimony

Digital forensic practitioners may be called upon to act in either or both roles. The technical or scientific witness provides evidence of facts that were uncovered during the investigation and describes what was found and how it was obtained. The expert witness provides opinion about what was observed based on experience, using deductive reasoning with observed or examined facts.

It is important to reiterate that in presenting a report or testifying in person, the practitioner must ensure that exculpatory as well as inculpatory evidence is presented ...

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