عنوان انگلیسی مقاله:
Digital Evidence Certainty Descriptors (DECDs)
ترجمه فارسی عنوان مقاله:
توصیف کنندگان قطعیت شواهد دیجیتال (DECD)
Sciencedirect - Elsevier - Forensic Science International: Digital Investigation, 32 (2020) . doi:10.1016/j.fsidi.2019.200896
Dr Graeme Horsman
Whilst many other traditional forensic science disciplines are encouraged to describe the weight of their
evidence in some form of quantifiable measurement/expression, this is rarely done in digital forensics.
There are calls to rectify this situation, suggesting that the field should begin to develop more robust,
scientific methods for evaluating the digital evidence presented by its practitioners. Whilst such a
recommendation carries a number of potential benefits, caution must be exercised as at present there are
no available satisfactory methods for achieving this. This work suggests that attaining such methods may
not actually be possible due to the intricacies of digital data and the difficulties involved with the finegrained
interpretation of events. As a result it is argued that attempts to quantify any uncertainty should
be abandoned in favour of methods which reliably describe when uncertainty exists and in what capacity.
Here, the Digital Evidence Certainty Descriptors (DECDs) framework is offered as a method for
conveying when uncertainty exists in a set of digital findings. The DECDs framework is discussed and
applied to working examples to demonstrate the difficulties involved with determining the authenticity
of a given hypothesis regarding digital evidence.
Keywords: Digital forensics | Digital evidence | Likelihood | Uncertainty | Criminal investigation